21333332

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4001}}^1$

素因数の和:4079

約数の個数: 24

約数和(自身を含む): 39443712

約数和(自身を除く): 18110380

約数列:

[1, 2, 4, 31, 43, 62, 86, 124, 172, 1333, 2666, 4001, 5332, 8002, 16004, 124031, 172043, 248062, 344086, 496124, 688172, 5333333, 10666666, 21333332]

約数ペア:

[(1, 21333332), (2, 10666666), (4, 5333333), (31, 688172), (43, 496124), (62, 344086), (86, 248062), (124, 172043), (172, 124031), (1333, 16004), (2666, 8002), (4001, 5332)]