Q: What is the sum of all factors of the number 20,643 excluding 20,643?
A: 10,845
The factors of the number 20,643 are: 1, 3, 7, 21, 983, 2949, 6881, 20643.
If you add them up, you will get the total of 20,653. Now subtract 20,643 to get 10,845