55261

Appears in sequences

• sigma_3(n): sum of cubes of divisors of n.at n=35A001158
• Numerator of sum of -3rd powers of divisors of n.at n=35A017669
• Sum of n-th powers of divisors of 36.at n=3A034666
• Largest squarefree number dividing sum of cubes of divisors of n.at n=35A080238
• Numerator of sigma_3(n)/sigma(n).at n=35A091259
• a(0)=1, a(n) = sigma_3(2n).at n=18A091986
• a(0)=1, a(n) = sigma_3(3n).at n=12A092341
• Expansion of (E_4(q) - E_4(q^5)) / 240 in powers of q where E_4 is an Eisenstein series.at n=35A226333
• Numerator of sigma_3(n)/sigma_2(n).at n=35A298754
• Super pseudoprimes (or superpseudoprimes) to base 3: Fermat pseudoprimes to base 3 all of whose divisors that are larger than 1 are either primes or Fermat pseudoprimes to base 3.at n=28A328662
• a(n) = J_9(n)/J_3(n), where J_k is the k-th Jordan totient function.at n=5A381713