181278981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{81547}}^1$

素因数の和:81585

約数の個数: 24

約数和(自身を含む): 296834720

約数和(自身を除く): 115555739

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 81547, 244641, 733923, 1060111, 1549393, 3180333, 4648179, 9540999, 13944537, 20142109, 60426327, 181278981]

約数ペア:

[(1, 181278981), (3, 60426327), (9, 20142109), (13, 13944537), (19, 9540999), (39, 4648179), (57, 3180333), (117, 1549393), (171, 1060111), (247, 733923), (741, 244641), (2223, 81547)]