How many EVEN (or ODD) Divisors does a number have?
We have counted how many divisors a number might have (see http://www.geogebratube.org/student/m146852 ). Let's take that one step further to decide how many even (or odd) divisors a number may have. For a video explanation of this see https://www.youtube.com/watch?v=RZDBwLU9waY