20933649

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 35942400

約数和(自身を除く): 15008751

約数列:

[1, 3, 9, 11, 19, 31, 33, 57, 93, 99, 171, 209, 279, 341, 359, 589, 627, 1023, 1077, 1767, 1881, 3069, 3231, 3949, 5301, 6479, 6821, 11129, 11847, 19437, 20463, 33387, 35541, 58311, 61389, 75031, 100161, 122419, 211451, 225093, 367257, 634353, 675279, 1101771, 1903059, 2325961, 6977883, 20933649]

約数ペア:

[(1, 20933649), (3, 6977883), (9, 2325961), (11, 1903059), (19, 1101771), (31, 675279), (33, 634353), (57, 367257), (93, 225093), (99, 211451), (171, 122419), (209, 100161), (279, 75031), (341, 61389), (359, 58311), (589, 35541), (627, 33387), (1023, 20463), (1077, 19437), (1767, 11847), (1881, 11129), (3069, 6821), (3231, 6479), (3949, 5301)]