Q: What is the sum of all factors of the number 20,421,300 excluding 20,421,300?

A: 38,665,196

Why is 38,665,196 the sum of all factors of 20,421,300, excluding 20,421,300?

The factors of the number 20,421,300 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 68071, 136142, 204213, 272284, 340355, 408426, 680710, 816852, 1021065, 1361420, 1701775, 2042130, 3403550, 4084260, 5105325, 6807100, 10210650, 20421300.

If you add them up, you will get the total of 20,421,338. Now subtract 20,421,300 to get 38,665,196