389635197

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{13553}}^1$

素因数の和:13637

約数の個数: 24

約数和(自身を含む): 610255296

約数和(自身を除く): 220620099

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 1369, 4107, 9583, 13553, 28749, 40659, 94871, 284613, 501461, 1504383, 3510227, 10530681, 18554057, 55662171, 129878399, 389635197]

約数ペア:

[(1, 389635197), (3, 129878399), (7, 55662171), (21, 18554057), (37, 10530681), (111, 3510227), (259, 1504383), (777, 501461), (1369, 284613), (4107, 94871), (9583, 40659), (13553, 28749)]