20671959

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 34721280

約数和(自身を除く): 14049321

約数列:

[1, 3, 7, 11, 21, 33, 77, 109, 231, 327, 763, 821, 1199, 2289, 2463, 3597, 5747, 8393, 9031, 17241, 25179, 27093, 63217, 89489, 189651, 268467, 626423, 984379, 1879269, 2953137, 6890653, 20671959]

約数ペア:

[(1, 20671959), (3, 6890653), (7, 2953137), (11, 1879269), (21, 984379), (33, 626423), (77, 268467), (109, 189651), (231, 89489), (327, 63217), (763, 27093), (821, 25179), (1199, 17241), (2289, 9031), (2463, 8393), (3597, 5747)]