208179979

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{719}}^1$

素因数の和:1063

約数の個数: 24

約数和(自身を含む): 256089600

約数和(自身を除く): 47909621

約数列:

[1, 7, 19, 49, 133, 311, 719, 931, 2177, 5033, 5909, 13661, 15239, 35231, 41363, 95627, 223609, 289541, 669389, 1565263, 4248571, 10956841, 29739997, 208179979]

約数ペア:

[(1, 208179979), (7, 29739997), (19, 10956841), (49, 4248571), (133, 1565263), (311, 669389), (719, 289541), (931, 223609), (2177, 95627), (5033, 41363), (5909, 35231), (13661, 15239)]