Q: What is the sum of all factors of the number 18,105 excluding 18,105?
A: 12,999
The factors of the number 18,105 are: 1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1207, 3621, 6035, 18105.
If you add them up, you will get the total of 18,117. Now subtract 18,105 to get 12,999