Q: What is the sum of all factors of the number 12,921 excluding 12,921?
A: 4,839
The factors of the number 12,921 are: 1, 3, 59, 73, 177, 219, 4307, 12921.
If you add them up, you will get the total of 12,925. Now subtract 12,921 to get 4,839