21831831

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8059}}^1$

素因数の和:8115

約数の個数: 24

約数和(自身を含む): 36882560

約数和(自身を除く): 15050729

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 8059, 24177, 56413, 72531, 169239, 346537, 507717, 1039611, 2425759, 3118833, 7277277, 21831831]

約数ペア:

[(1, 21831831), (3, 7277277), (7, 3118833), (9, 2425759), (21, 1039611), (43, 507717), (63, 346537), (129, 169239), (301, 72531), (387, 56413), (903, 24177), (2709, 8059)]