Q: What is the sum of all factors of the number 21,885 excluding 21,885?
A: 13,155
The factors of the number 21,885 are: 1, 3, 5, 15, 1459, 4377, 7295, 21885.
If you add them up, you will get the total of 21,898. Now subtract 21,885 to get 13,155