Q: What is the sum of all factors of the number 1,995 excluding 1,995?
A: 1,845
The factors of the number 1,995 are: 1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995.
If you add them up, you will get the total of 1,996. Now subtract 1,995 to get 1,845