21900411

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5059}}^1$

素因数の和:5115

約数の個数: 24

約数和(自身を含む): 34994960

約数和(自身を除く): 13094549

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 5059, 15177, 45531, 65767, 187183, 197301, 561549, 591903, 1684647, 2433379, 7300137, 21900411]

約数ペア:

[(1, 21900411), (3, 7300137), (9, 2433379), (13, 1684647), (37, 591903), (39, 561549), (111, 197301), (117, 187183), (333, 65767), (481, 45531), (1443, 15177), (4329, 5059)]