18735387839

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1\times {\mathrm{172243}}^1$

素因数の和:172670

約数の個数: 16

約数和(自身を含む): 21992113920

約数和(自身を除く): 3256726081

約数列:

[1, 7, 41, 287, 379, 2653, 15539, 108773, 172243, 1205701, 7061963, 49433741, 65280097, 456960679, 2676483977, 18735387839]

約数ペア:

[(1, 18735387839), (7, 2676483977), (41, 456960679), (287, 65280097), (379, 49433741), (2653, 7061963), (15539, 1205701), (108773, 172243)]