Q: What is the sum of all factors of the number 20,517 excluding 20,517?
A: 10,779
The factors of the number 20,517 are: 1, 3, 7, 21, 977, 2931, 6839, 20517.
If you add them up, you will get the total of 20,527. Now subtract 20,517 to get 10,779