21153105

素因数分解:

$3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1697}}^1$

素因数の和:1985

約数の個数: 24

約数和(自身を含む): 36819432

約数和(自身を除く): 15666327

約数列:

[1, 3, 5, 9, 15, 45, 277, 831, 1385, 1697, 2493, 4155, 5091, 8485, 12465, 15273, 25455, 76365, 470069, 1410207, 2350345, 4230621, 7051035, 21153105]

約数ペア:

[(1, 21153105), (3, 7051035), (5, 4230621), (9, 2350345), (15, 1410207), (45, 470069), (277, 76365), (831, 25455), (1385, 15273), (1697, 12465), (2493, 8485), (4155, 5091)]