20951218

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{827}}^1$

素因数の和:1121

約数の個数: 16

約数和(自身を含む): 32192640

約数和(自身を除く): 11241422

約数列:

[1, 2, 53, 106, 239, 478, 827, 1654, 12667, 25334, 43831, 87662, 197653, 395306, 10475609, 20951218]

約数ペア:

[(1, 20951218), (2, 10475609), (53, 395306), (106, 197653), (239, 87662), (478, 43831), (827, 25334), (1654, 12667)]