Q: What is the sum of all factors of the number 131,445 excluding 131,445?
A: 108,171
The factors of the number 131,445 are: 1, 3, 5, 9, 15, 23, 45, 69, 115, 127, 207, 345, 381, 635, 1035, 1143, 1905, 2921, 5715, 8763, 14605, 26289, 43815, 131445.
If you add them up, you will get the total of 131,553. Now subtract 131,445 to get 108,171