821004289

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{839}}^1\times {\mathrm{3251}}^1$

素因数の和:4140

約数の個数: 16

約数和(自身を含む): 961551360

約数和(自身を除く): 140547071

約数列:

[1, 7, 43, 301, 839, 3251, 5873, 22757, 36077, 139793, 252539, 978551, 2727589, 19093123, 117286327, 821004289]

約数ペア:

[(1, 821004289), (7, 117286327), (43, 19093123), (301, 2727589), (839, 978551), (3251, 252539), (5873, 139793), (22757, 36077)]