36197280

Appears in sequences

• Numbers n for which sigma(n)/n = k+1/3 with integer k.at n=9A160320
• Numbers k that divide 3*sigma(k).at n=31A245774
• Numbers k such that A017666(k) = denominator(sigma(k)/k) = 3.at n=18A245775
• Numbers whose numerator and denominator of their abundancy index are both Fibonacci numbers.at n=30A349687