21888657

素因数分解:

$3^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 15436143

約数列:

[1, 3, 7, 9, 21, 27, 63, 179, 189, 537, 647, 1253, 1611, 1941, 3759, 4529, 4833, 5823, 11277, 13587, 17469, 33831, 40761, 115813, 122283, 347439, 810691, 1042317, 2432073, 3126951, 7296219, 21888657]

約数ペア:

[(1, 21888657), (3, 7296219), (7, 3126951), (9, 2432073), (21, 1042317), (27, 810691), (63, 347439), (179, 122283), (189, 115813), (537, 40761), (647, 33831), (1253, 17469), (1611, 13587), (1941, 11277), (3759, 5823), (4529, 4833)]