21720666

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{329101}}^1$

素因数の和:329117

約数の個数: 16

約数和(自身を含む): 47390688

約数和(自身を除く): 25670022

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 329101, 658202, 987303, 1974606, 3620111, 7240222, 10860333, 21720666]

約数ペア:

[(1, 21720666), (2, 10860333), (3, 7240222), (6, 3620111), (11, 1974606), (22, 987303), (33, 658202), (66, 329101)]