21246845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1609}}^1$

素因数の和:1772

約数の個数: 16

約数和(自身を含む): 27048000

約数和(自身を除く): 5801155

約数列:

[1, 5, 19, 95, 139, 695, 1609, 2641, 8045, 13205, 30571, 152855, 223651, 1118255, 4249369, 21246845]

約数ペア:

[(1, 21246845), (5, 4249369), (19, 1118255), (95, 223651), (139, 152855), (695, 30571), (1609, 13205), (2641, 8045)]