Answer:
39
Explanation:
factors of 18= 1, 2, 3, 6, 9, 18
1+2+3+6+9+18=39
The divisors of 18 are ...
1, 2, 3, 6, 9, 18
Their sum is ...
1 + 2 + 3 + 6 + 9 + 18 = 39
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