Q: What is the sum of all factors of the number 16,605 excluding 16,605?
A: 13,887
The factors of the number 16,605 are: 1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 369, 405, 615, 1107, 1845, 3321, 5535, 16605.
If you add them up, you will get the total of 16,618. Now subtract 16,605 to get 13,887