Q: What is the sum of all factors of the number 21,684 excluding 21,684?
A: 33,196
The factors of the number 21,684 are: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 139, 156, 278, 417, 556, 834, 1668, 1807, 3614, 5421, 7228, 10842, 21684.
If you add them up, you will get the total of 21,717. Now subtract 21,684 to get 33,196