How many ways can 12 be divided into equal groups?

You can have one group of 12, two groups of 6, three groups of 4, four groups of 3, six groups of 2, or twelve groups of one. If you count "one group of 12", then there are six different ways. If not, then there are five.

To be awkward, the way the question is put, there is an infinity of ways. Choose any n, where n is any positive integer number you like and you can have n groups each one with 12/n in it.