Q: What is the sum of all factors of the number 8,181 excluding 8,181?
A: 4,161
The factors of the number 8,181 are: 1, 3, 9, 27, 81, 101, 303, 909, 2727, 8181.
If you add them up, you will get the total of 8,185. Now subtract 8,181 to get 4,161