6039429120

Appears in sequences

• Numbers n for which sigma(n)/n=k+2/3 with integer k.at n=14A160321
• Numbers n such that gcd(sigma(n), n) > gcd(sigma(m), m) for all m < n.at n=31A216793
• Numbers k such that A017666(k) = denominator(sigma(k)/k) = 3.at n=27A245775
• Numbers m such that the sum of the first k divisors of m, for some k, is equal to the sum of its other divisors.at n=15A334410