20684277

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{457}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 30865536

約数和(自身を除く): 10181259

約数列:

[1, 3, 9, 47, 107, 141, 321, 423, 457, 963, 1371, 4113, 5029, 15087, 21479, 45261, 48899, 64437, 146697, 193311, 440091, 2298253, 6894759, 20684277]

約数ペア:

[(1, 20684277), (3, 6894759), (9, 2298253), (47, 440091), (107, 193311), (141, 146697), (321, 64437), (423, 48899), (457, 45261), (963, 21479), (1371, 15087), (4113, 5029)]