21140886

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{20849}}^1$

素因数の和:20880

約数の個数: 24

約数和(自身を含む): 45786600

約数和(自身を除く): 24645714

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 338, 507, 1014, 20849, 41698, 62547, 125094, 271037, 542074, 813111, 1626222, 3523481, 7046962, 10570443, 21140886]

約数ペア:

[(1, 21140886), (2, 10570443), (3, 7046962), (6, 3523481), (13, 1626222), (26, 813111), (39, 542074), (78, 271037), (169, 125094), (338, 62547), (507, 41698), (1014, 20849)]