Q: What is the sum of all factors of the number 21,034,240 excluding 21,034,240?

A: 29,352,404

Why is 29,352,404 the sum of all factors of 21,034,240, excluding 21,034,240?

The factors of the number 21,034,240 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16433, 32866, 65732, 82165, 131464, 164330, 262928, 328660, 525856, 657320, 1051712, 1314640, 2103424, 2629280, 4206848, 5258560, 10517120, 21034240.

If you add them up, you will get the total of 21,034,269. Now subtract 21,034,240 to get 29,352,404