Q: What is the sum of all factors of the number 123,423,313 excluding 123,423,313?

A: 21,067,439

Why is 21,067,439 the sum of all factors of 123,423,313, excluding 123,423,313?

The factors of the number 123,423,313 are: 1, 13, 23, 61, 67, 101, 299, 793, 871, 1313, 1403, 1541, 2323, 4087, 6161, 6767, 18239, 20033, 30199, 53131, 80093, 87971, 94001, 141703, 155641, 412787, 1222013, 1842139, 2023333, 5366231, 9494101, 123423313.

If you add them up, you will get the total of 123,423,334. Now subtract 123,423,313 to get 21,067,439