21918985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{10771}}^1$

素因数の和:10824

約数の個数: 16

約数和(自身を含む): 29472192

約数和(自身を除く): 7553207

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 10771, 53855, 118481, 398527, 592405, 1992635, 4383797, 21918985]

約数ペア:

[(1, 21918985), (5, 4383797), (11, 1992635), (37, 592405), (55, 398527), (185, 118481), (407, 53855), (2035, 10771)]