20161668165

素因数分解:

$3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{4321901}}^1$

素因数の和:4322220

約数の個数: 16

約数和(自身を含む): 32362402176

約数和(自身を除く): 12200734011

約数列:

[1, 3, 5, 15, 311, 933, 1555, 4665, 4321901, 12965703, 21609505, 64828515, 1344111211, 4032333633, 6720556055, 20161668165]

約数ペア:

[(1, 20161668165), (3, 6720556055), (5, 4032333633), (15, 1344111211), (311, 64828515), (933, 21609505), (1555, 12965703), (4665, 4321901)]