Q: What is the sum of all factors of the number 18,104,391 excluding 18,104,391?

Why is 9,056,721 the sum of all factors of 18,104,391, excluding 18,104,391?

The factors of the number 18,104,391 are: 1, 3, 9, 27, 81, 397, 563, 1191, 1689, 3573, 5067, 10719, 15201, 32157, 45603, 223511, 670533, 2011599, 6034797, 18104391.

If you add them up, you will get the total of 18,104,400. Now subtract 18,104,391 to get 9,056,721

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