Q: What is the sum of all factors of the number 21,345 excluding 21,345?
A: 12,831
The factors of the number 21,345 are: 1, 3, 5, 15, 1423, 4269, 7115, 21345.
If you add them up, you will get the total of 21,357. Now subtract 21,345 to get 12,831