Q: What is the sum of all factors of the number 12,128,287 excluding 12,128,287?

 A: 7,089

Why is 7,089 the sum of all factors of 12,128,287, excluding 12,128,287?

The factors of the number 12,128,287 are: 1, 2887, 4201, 12128287.

If you add them up, you will get the total of 12,128,294. Now subtract 12,128,287 to get 7,089


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