Q: What is the sum of all factors of the number 1,142,427 excluding 1,142,427?

 A: 647,781

Why is 647,781 the sum of all factors of 1,142,427, excluding 1,142,427?

The factors of the number 1,142,427 are: 1, 3, 11, 13, 33, 39, 143, 429, 2663, 7989, 29293, 34619, 87879, 103857, 380809, 1142427.

If you add them up, you will get the total of 1,143,074. Now subtract 1,142,427 to get 647,781


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