21809205

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44059}}^1$

素因数の和:44081

約数の個数: 24

約数和(自身を含む): 41240160

約数和(自身を除く): 19430955

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 44059, 132177, 220295, 396531, 484649, 660885, 1453947, 1982655, 2423245, 4361841, 7269735, 21809205]

約数ペア:

[(1, 21809205), (3, 7269735), (5, 4361841), (9, 2423245), (11, 1982655), (15, 1453947), (33, 660885), (45, 484649), (55, 396531), (99, 220295), (165, 132177), (495, 44059)]