205019139

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{21283}}^1$

素因数の和:21331

約数の個数: 24

約数和(自身を含む): 311597760

約数和(自身を除く): 106578621

約数列:

[1, 3, 13, 19, 39, 57, 169, 247, 507, 741, 3211, 9633, 21283, 63849, 276679, 404377, 830037, 1213131, 3596827, 5256901, 10790481, 15770703, 68339713, 205019139]

約数ペア:

[(1, 205019139), (3, 68339713), (13, 15770703), (19, 10790481), (39, 5256901), (57, 3596827), (169, 1213131), (247, 830037), (507, 404377), (741, 276679), (3211, 63849), (9633, 21283)]