Q: What is the sum of all factors of the number 666,513 excluding 666,513?
A: 306,927
The factors of the number 666,513 are: 1, 3, 9, 103, 309, 719, 927, 2157, 6471, 74057, 222171, 666513.
If you add them up, you will get the total of 666,819. Now subtract 666,513 to get 306,927