20490435

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21683}}^1$

素因数の和:21704

約数の個数: 32

約数和(自身を含む): 41633280

約数和(自身を除く): 21142845

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21683, 65049, 108415, 151781, 195147, 325245, 455343, 585441, 758905, 975735, 1366029, 2276715, 2927205, 4098087, 6830145, 20490435]

約数ペア:

[(1, 20490435), (3, 6830145), (5, 4098087), (7, 2927205), (9, 2276715), (15, 1366029), (21, 975735), (27, 758905), (35, 585441), (45, 455343), (63, 325245), (105, 195147), (135, 151781), (189, 108415), (315, 65049), (945, 21683)]