18734541

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20747}}^1$

素因数の和:20800

約数の個数: 16

約数和(自身を含む): 29213184

約数和(自身を除く): 10478643

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 20747, 62241, 145229, 435687, 892121, 2676363, 6244847, 18734541]

約数ペア:

[(1, 18734541), (3, 6244847), (7, 2676363), (21, 892121), (43, 435687), (129, 145229), (301, 62241), (903, 20747)]