Q: What is the sum of all factors of the number 23,985 excluding 23,985?
A: 21,879
The factors of the number 23,985 are: 1, 3, 5, 9, 13, 15, 39, 41, 45, 65, 117, 123, 195, 205, 369, 533, 585, 615, 1599, 1845, 2665, 4797, 7995, 23985.
If you add them up, you will get the total of 24,006. Now subtract 23,985 to get 21,879