20851818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6217}}^1$

素因数の和:6278

約数の個数: 32

約数和(自身を含む): 45963456

約数和(自身を除く): 25111638

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 6217, 12434, 18651, 37302, 80821, 161642, 242463, 267331, 484926, 534662, 801993, 1603986, 3475303, 6950606, 10425909, 20851818]

約数ペア:

[(1, 20851818), (2, 10425909), (3, 6950606), (6, 3475303), (13, 1603986), (26, 801993), (39, 534662), (43, 484926), (78, 267331), (86, 242463), (129, 161642), (258, 80821), (559, 37302), (1118, 18651), (1677, 12434), (3354, 6217)]