18218837

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{773}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 23470776

約数和(自身を除く): 5251939

約数列:

[1, 7, 13, 37, 49, 91, 259, 481, 637, 773, 1813, 3367, 5411, 10049, 23569, 28601, 37877, 70343, 200207, 371813, 492401, 1401449, 2602691, 18218837]

約数ペア:

[(1, 18218837), (7, 2602691), (13, 1401449), (37, 492401), (49, 371813), (91, 200207), (259, 70343), (481, 37877), (637, 28601), (773, 23569), (1813, 10049), (3367, 5411)]