20191923

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2287}}^1$

素因数の和:2408

約数の個数: 20

約数和(自身を含む): 30453280

約数和(自身を除く): 10261357

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2287, 2943, 6861, 8829, 20583, 61749, 185247, 249283, 747849, 2243547, 6730641, 20191923]

約数ペア:

[(1, 20191923), (3, 6730641), (9, 2243547), (27, 747849), (81, 249283), (109, 185247), (327, 61749), (981, 20583), (2287, 8829), (2943, 6861)]