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Table of n, a(n) for n=4..44.
a(6)=21, n=21; quotient of product of aliquot divisors divided by number of aliquot divisors is 7 (aliquot divisors of 21 = 1*3*7 and 21/3 divisors = 7). Since 7 is integral, add to sequence.
Sequence in context: A004110 A236960 A290609 * A176343 A306020 A037075
Adjacent sequences: A048751 A048752 A048753 * A048755 A048756 A048757