RMS numbers: numbers n such that root mean square of divisors of n is an integer.
1, 7, 41, 239, 287, 1673, 3055, 6665, 9545, 9799, 9855, 21385, 26095, 34697, 46655
1 seqfan posts
Wed Feb 16 18:57:15 CET 2011 [seqfan] Re: multiplicative set-like sequences