Q: What is the sum of all factors of the number 8,421,978 excluding 8,421,978?

 A: 9,308,742

Why is 9,308,742 the sum of all factors of 8,421,978, excluding 8,421,978?

The factors of the number 8,421,978 are: 1, 2, 3, 6, 19, 38, 57, 114, 73877, 147754, 221631, 443262, 1403663, 2807326, 4210989, 8421978.

If you add them up, you will get the total of 8,421,987. Now subtract 8,421,978 to get 9,308,742


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