What is the Sum of Factors of 18?

The Sum of Factors of 18 means that you add up all the factors of 18. You may be looking for the Sum of Factors of 18 including or excluding 18 itself.

Here is the calculation and answer to the Sum of all Factors of 18 including 18:

1 + 2 + 3 + 6 + 9 + 18 = 39

Here is the calculation and answer to the Sum of Factors of 18 if you exclude 18 itself:

1 + 2 + 3 + 6 + 9 = 21

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What is the Sum of Factors of 19?
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