18709313

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 22032000

約数和(自身を除く): 3322687

約数列:

[1, 7, 59, 89, 413, 509, 623, 3563, 5251, 30031, 36757, 45301, 210217, 317107, 2672759, 18709313]

約数ペア:

[(1, 18709313), (7, 2672759), (59, 317107), (89, 210217), (413, 45301), (509, 36757), (623, 30031), (3563, 5251)]