Q: What is the sum of all factors of the number 20,721,112 excluding 20,721,112?

 A: 18,130,988

Why is 18,130,988 the sum of all factors of 20,721,112, excluding 20,721,112?

The factors of the number 20,721,112 are: 1, 2, 4, 8, 2590139, 5180278, 10360556, 20721112.

If you add them up, you will get the total of 20,721,130. Now subtract 20,721,112 to get 18,130,988


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