2144862720

Appears in sequences

• Refactorable numbers (A033950) that are simultaneously arithmetic (A003601) and harmonic (A001599).at n=10A331666
• Harmonic numbers (A001599) with a record number of divisors.at n=21A335317
• Harmonic numbers (A001599) k with a record abundancy index sigma(k)/k.at n=12A335318
• a(n) is the smallest number with exactly n divisors d such that sigma(d)/d is an integer.at n=10A338405