Q: What is the sum of all factors of the number 19,815 excluding 19,815?
A: 11,913
The factors of the number 19,815 are: 1, 3, 5, 15, 1321, 3963, 6605, 19815.
If you add them up, you will get the total of 19,826. Now subtract 19,815 to get 11,913