Q: What is the sum of all factors of the number 989,442 excluding 989,442?

Why is 1,248,318 the sum of all factors of 989,442, excluding 989,442?

The factors of the number 989,442 are: 1, 2, 3, 6, 9, 18, 27, 54, 73, 146, 219, 251, 438, 502, 657, 753, 1314, 1506, 1971, 2259, 3942, 4518, 6777, 13554, 18323, 36646, 54969, 109938, 164907, 329814, 494721, 989442.

If you add them up, you will get the total of 989,443. Now subtract 989,442 to get 1,248,318

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