Q: What is the sum of all factors of the number 66,420,405 excluding 66,420,405?

Why is 52,974,507 the sum of all factors of 66,420,405, excluding 66,420,405?

The factors of the number 66,420,405 are: 1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 54667, 164001, 273335, 492003, 820005, 1476009, 2460015, 4428027, 7380045, 13284081, 22140135, 66420405.

If you add them up, you will get the total of 66,420,457. Now subtract 66,420,405 to get 52,974,507

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