20979928

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{44449}}^1$

素因数の和:44514

約数の個数: 16

約数和(自身を含む): 40005000

約数和(自身を除く): 19025072

約数列:

[1, 2, 4, 8, 59, 118, 236, 472, 44449, 88898, 177796, 355592, 2622491, 5244982, 10489964, 20979928]

約数ペア:

[(1, 20979928), (2, 10489964), (4, 5244982), (8, 2622491), (59, 355592), (118, 177796), (236, 88898), (472, 44449)]