20173972

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2917}}^1$

素因数の和:2960

約数の個数: 48

約数和(自身を含む): 45754240

約数和(自身を除く): 25580268

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 2917, 3458, 5834, 6916, 11668, 20419, 37921, 40838, 55423, 75842, 81676, 110846, 151684, 221692, 265447, 387961, 530894, 720499, 775922, 1061788, 1440998, 1551844, 2881996, 5043493, 10086986, 20173972]

約数ペア:

[(1, 20173972), (2, 10086986), (4, 5043493), (7, 2881996), (13, 1551844), (14, 1440998), (19, 1061788), (26, 775922), (28, 720499), (38, 530894), (52, 387961), (76, 265447), (91, 221692), (133, 151684), (182, 110846), (247, 81676), (266, 75842), (364, 55423), (494, 40838), (532, 37921), (988, 20419), (1729, 11668), (2917, 6916), (3458, 5834)]