18227915

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{569}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 22572000

約数和(自身を除く): 4344085

約数列:

[1, 5, 43, 149, 215, 569, 745, 2845, 6407, 24467, 32035, 84781, 122335, 423905, 3645583, 18227915]

約数ペア:

[(1, 18227915), (5, 3645583), (43, 423905), (149, 122335), (215, 84781), (569, 32035), (745, 24467), (2845, 6407)]