16986505

素因数分解:

$5^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:177

約数の個数: 24

約数和(自身を含む): 21833856

約数和(自身を除く): 4847351

約数列:

[1, 5, 41, 43, 47, 205, 215, 235, 1681, 1763, 1927, 2021, 8405, 8815, 9635, 10105, 72283, 79007, 82861, 361415, 395035, 414305, 3397301, 16986505]

約数ペア:

[(1, 16986505), (5, 3397301), (41, 414305), (43, 395035), (47, 361415), (205, 82861), (215, 79007), (235, 72283), (1681, 10105), (1763, 9635), (1927, 8815), (2021, 8405)]