You can override the default implementation of console.log()

(function () {
    var old = console.log;
    var logger = document.getElementById('log');
    console.log = function (message) {
        if (typeof message == 'object') {
            logger.innerHTML += (JSON && JSON.stringify ? JSON.stringify(message) : message) + '<br />';
        } else {
            logger.innerHTML += message + '<br />';
        }
    }
})();

Demo: Fiddle

Let's say you have a <div id="printFollower"></div> somewhere in your html.

Then do this:

Copyfunction printFollowers(followersSum) {
  document.getElementById('printFollower').innerHTML = followersSum;
  console.log(followersSum); // you can do print followersSum wherever you want
}

Using this method, you can control where the list shows up better, apply CSS, etc.

From the clues in your question I take it you work in a browser environment.

console is an object on the window object. Therefor you can easily replace it. The following code will replace the browser's window.console with a custom window.console which has the method log. The log method will take a string and append it to an element with the id myLog

In your HTML:

<p id="myLog"></p>

In your JS:

window.console = {
  log: function(str){
    var node = document.createElement("div");
    node.appendChild(document.createTextNode(str));
    document.getElementById("myLog").appendChild(node);
  }
}
console.log('hi');
console.log('there');

This is given that you only log strings. If you log other things, such as object, you probably want to add a type check in the log method and if it's an object, run it through JSON.stringify before adding it to the node.