Q: What is the sum of all factors of the number 621,376,041 excluding 621,376,041?

A: 358,601,559

Why is 358,601,559 the sum of all factors of 621,376,041, excluding 621,376,041?

The factors of the number 621,376,041 are: 1, 3, 11, 13, 33, 39, 143, 149, 429, 447, 1639, 1937, 4917, 5811, 9721, 21307, 29163, 63921, 106931, 126373, 320793, 379119, 1390103, 1448429, 4170309, 4345287, 15932719, 18829577, 47798157, 56488731, 207125347, 621376041.

If you add them up, you will get the total of 621,376,399. Now subtract 621,376,041 to get 358,601,559