Q: What is the sum of all factors of the number 24,921 excluding 24,921?
A: 15,399
The factors of the number 24,921 are: 1, 3, 9, 13, 27, 39, 71, 117, 213, 351, 639, 923, 1917, 2769, 8307, 24921.
If you add them up, you will get the total of 24,936. Now subtract 24,921 to get 15,399