20168720019

素因数分解:

$3^2\times 7^3\times {\mathrm{6533437}}^1$

素因数の和:6533464

約数の個数: 24

約数和(自身を含む): 33973877600

約数和(自身を除く): 13805157581

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6533437, 19600311, 45734059, 58800933, 137202177, 320138413, 411606531, 960415239, 2240968891, 2881245717, 6722906673, 20168720019]

約数ペア:

[(1, 20168720019), (3, 6722906673), (7, 2881245717), (9, 2240968891), (21, 960415239), (49, 411606531), (63, 320138413), (147, 137202177), (343, 58800933), (441, 45734059), (1029, 19600311), (3087, 6533437)]