81301913

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{28537}}^1$

素因数の和:28592

約数の個数: 16

約数和(自身を含む): 104106624

約数和(自身を除く): 22804711

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 28537, 199759, 313907, 1055869, 2197349, 7391083, 11614559, 81301913]

約数ペア:

[(1, 81301913), (7, 11614559), (11, 7391083), (37, 2197349), (77, 1055869), (259, 313907), (407, 199759), (2849, 28537)]