18129445

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:181

約数の個数: 24

約数和(自身を含む): 23306616

約数和(自身を除く): 5177171

約数列:

[1, 5, 37, 43, 53, 185, 215, 265, 1591, 1849, 1961, 2279, 7955, 9245, 9805, 11395, 68413, 84323, 97997, 342065, 421615, 489985, 3625889, 18129445]

約数ペア:

[(1, 18129445), (5, 3625889), (37, 489985), (43, 421615), (53, 342065), (185, 97997), (215, 84323), (265, 68413), (1591, 11395), (1849, 9805), (1961, 9245), (2279, 7955)]