20801372

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{739}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 37793280

約数和(自身を除く): 16991908

約数列:

[1, 2, 4, 31, 62, 124, 227, 454, 739, 908, 1478, 2956, 7037, 14074, 22909, 28148, 45818, 91636, 167753, 335506, 671012, 5200343, 10400686, 20801372]

約数ペア:

[(1, 20801372), (2, 10400686), (4, 5200343), (31, 671012), (62, 335506), (124, 167753), (227, 91636), (454, 45818), (739, 28148), (908, 22909), (1478, 14074), (2956, 7037)]