Q: What is the sum of all factors of the number 400,423,749 excluding 400,423,749?

A: 191,602,875

Why is 191,602,875 the sum of all factors of 400,423,749, excluding 400,423,749?

The factors of the number 400,423,749 are: 1, 3, 11, 33, 113, 167, 339, 501, 643, 1243, 1837, 1929, 3729, 5511, 7073, 18871, 21219, 56613, 72659, 107381, 207581, 217977, 322143, 622743, 799249, 1181191, 2397747, 3543573, 12134053, 36402159, 133474583, 400423749.

If you add them up, you will get the total of 400,423,940. Now subtract 400,423,749 to get 191,602,875