21525305

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{379}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 26685120

約数和(自身を除く): 5159815

約数列:

[1, 5, 37, 185, 307, 379, 1535, 1895, 11359, 14023, 56795, 70115, 116353, 581765, 4305061, 21525305]

約数ペア:

[(1, 21525305), (5, 4305061), (37, 581765), (185, 116353), (307, 70115), (379, 56795), (1535, 14023), (1895, 11359)]