18936021

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{997}}^1$

素因数の和:1500

約数の個数: 16

約数和(自身を含む): 27273344

約数和(自身を除く): 8337323

約数列:

[1, 3, 13, 39, 487, 997, 1461, 2991, 6331, 12961, 18993, 38883, 485539, 1456617, 6312007, 18936021]

約数ペア:

[(1, 18936021), (3, 6312007), (13, 1456617), (39, 485539), (487, 38883), (997, 18993), (1461, 12961), (2991, 6331)]