18115385

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{541}}^1$

素因数の和:764

約数の個数: 16

約数和(自身を含む): 22490832

約数和(自身を除く): 4375447

約数列:

[1, 5, 37, 181, 185, 541, 905, 2705, 6697, 20017, 33485, 97921, 100085, 489605, 3623077, 18115385]

約数ペア:

[(1, 18115385), (5, 3623077), (37, 489605), (181, 100085), (185, 97921), (541, 33485), (905, 20017), (2705, 6697)]