20395518

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2201

約数の個数: 48

約数和(自身を含む): 48307728

約数和(自身を除く): 27912210

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 121, 143, 242, 286, 363, 429, 726, 858, 1573, 2161, 3146, 4322, 4719, 6483, 9438, 12966, 23771, 28093, 47542, 56186, 71313, 84279, 142626, 168558, 261481, 309023, 522962, 618046, 784443, 927069, 1568886, 1854138, 3399253, 6798506, 10197759, 20395518]

約数ペア:

[(1, 20395518), (2, 10197759), (3, 6798506), (6, 3399253), (11, 1854138), (13, 1568886), (22, 927069), (26, 784443), (33, 618046), (39, 522962), (66, 309023), (78, 261481), (121, 168558), (143, 142626), (242, 84279), (286, 71313), (363, 56186), (429, 47542), (726, 28093), (858, 23771), (1573, 12966), (2161, 9438), (3146, 6483), (4322, 4719)]