Q: What is the sum of all factors of the number 256,959 excluding 256,959?
A: 137,281
The factors of the number 256,959 are: 1, 3, 9, 27, 31, 93, 279, 307, 837, 921, 2763, 8289, 9517, 28551, 85653, 256959.
If you add them up, you will get the total of 257,096. Now subtract 256,959 to get 137,281