20906444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{983}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 39537120

約数和(自身を除く): 18630676

約数列:

[1, 2, 4, 13, 26, 52, 409, 818, 983, 1636, 1966, 3932, 5317, 10634, 12779, 21268, 25558, 51116, 402047, 804094, 1608188, 5226611, 10453222, 20906444]

約数ペア:

[(1, 20906444), (2, 10453222), (4, 5226611), (13, 1608188), (26, 804094), (52, 402047), (409, 51116), (818, 25558), (983, 21268), (1636, 12779), (1966, 10634), (3932, 5317)]