81379179

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{6763}}^1$

素因数の和:6967

約数の個数: 24

約数和(自身を含む): 135063552

約数和(自身を除く): 53684373

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1719, 4011, 6763, 12033, 20289, 47341, 60867, 142023, 426069, 1291733, 3875199, 9042131, 11625597, 27126393, 81379179]

約数ペア:

[(1, 81379179), (3, 27126393), (7, 11625597), (9, 9042131), (21, 3875199), (63, 1291733), (191, 426069), (573, 142023), (1337, 60867), (1719, 47341), (4011, 20289), (6763, 12033)]