18682855

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{769}}^1$

素因数の和:930

約数の個数: 16

約数和(自身を含む): 23173920

約数和(自身を除く): 4491065

約数列:

[1, 5, 43, 113, 215, 565, 769, 3845, 4859, 24295, 33067, 86897, 165335, 434485, 3736571, 18682855]

約数ペア:

[(1, 18682855), (5, 3736571), (43, 434485), (113, 165335), (215, 86897), (565, 33067), (769, 24295), (3845, 4859)]