20862910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7219}}^1$

素因数の和:7260

約数の個数: 24

約数和(自身を含む): 39897720

約数和(自身を除く): 19034810

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7219, 14438, 36095, 72190, 122723, 245446, 613615, 1227230, 2086291, 4172582, 10431455, 20862910]

約数ペア:

[(1, 20862910), (2, 10431455), (5, 4172582), (10, 2086291), (17, 1227230), (34, 613615), (85, 245446), (170, 122723), (289, 72190), (578, 36095), (1445, 14438), (2890, 7219)]