Q: What is the sum of all factors of the number 1,561,131 excluding 1,561,131?
A: 1,090,245
The factors of the number 1,561,131 are: 1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1213, 1287, 3639, 10917, 13343, 15769, 40029, 47307, 120087, 141921, 173459, 520377, 1561131.
If you add them up, you will get the total of 1,561,132. Now subtract 1,561,131 to get 1,090,245