Q: What is the sum of all factors of the number 4,004 excluding 4,004?

A: 5,404

Why is 5,404 the sum of all factors of 4,004, excluding 4,004?

The factors of the number 4,004 are: 1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004.

If you add them up, you will get the total of 4,009. Now subtract 4,004 to get 5,404

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