find the sum of divisors of 18
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Answer:
39
Explanation:
(18)=(2−2¹⁺¹−1 /2-1 )×( 3²⁺¹−1 /3-1 )
=( 2² −1 /2-1 )×( 3³ −1/3-1 )
=( 4-1/2-1 )×( 27-1/3-1)
=(3/1)×(26/2)
=3×13=39
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