Q: What is the sum of all factors of the number 13,215 excluding 13,215?
A: 7,953
The factors of the number 13,215 are: 1, 3, 5, 15, 881, 2643, 4405, 13215.
If you add them up, you will get the total of 13,222. Now subtract 13,215 to get 7,953