21865618

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5279}}^1$

素因数の和:5409

約数の個数: 16

約数和(自身を含む): 34848000

約数和(自身を除く): 12982382

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 5279, 10558, 100301, 200602, 575411, 1150822, 10932809, 21865618]

約数ペア:

[(1, 21865618), (2, 10932809), (19, 1150822), (38, 575411), (109, 200602), (218, 100301), (2071, 10558), (4142, 5279)]