Q: What is the sum of all factors of the number 309,315 excluding 309,315?
A: 215,133
The factors of the number 309,315 are: 1, 3, 5, 15, 17, 51, 85, 255, 1213, 3639, 6065, 18195, 20621, 61863, 103105, 309315.
If you add them up, you will get the total of 309,530. Now subtract 309,315 to get 215,133