Question: Define a function S : + + as follows. For each positive integer n , S ( n ) = the sum of the positive

Define a functionS:⁺⁺as follows.

For each positive integern,S(n) = the sum of the positive divisors ofn.

Find the following. (For each answer, enter an exact number.)

Define a functionS:++as follows.For each positive integern,S(n) = the sum of the

Define a function S : Z+ - Z+ as follows. For each positive integer n, S(n) = the sum of the positive divisors of n. Find the following. (For each answer, enter an exact number.) (a) s(1) = (b) s(15) = (c) S(17) = (d) s(7) = (e) S(18) = (f) S(21) =

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