1640520321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{125221}}^1$

素因数の和:125632

約数の個数: 16

約数和(自身を含む): 2392241088

約数和(自身を除く): 751720767

約数列:

[1, 3, 11, 33, 397, 1191, 4367, 13101, 125221, 375663, 1377431, 4132293, 49712737, 149138211, 546840107, 1640520321]

約数ペア:

[(1, 1640520321), (3, 546840107), (11, 149138211), (33, 49712737), (397, 4132293), (1191, 1377431), (4367, 375663), (13101, 125221)]