421655

Appears in sequences

• RMS numbers: numbers n such that root mean square of divisors of n is an integer.at n=26A140480
• Primitive RMS numbers: RMS numbers which are not the product of two smaller RMS numbers.at n=12A141813
• Composite RMS numbers: composite numbers c such that root mean square of divisors of c is an integer.at n=22A158287
• Numbers m such that the arithmetic mean and the quadratic mean (the root mean square) of the divisors of m are both integers.at n=26A327055