215684729

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2029}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 254099160

約数和(自身を除く): 38414431

約数列:

[1, 13, 17, 37, 169, 221, 481, 629, 2029, 2873, 6253, 8177, 26377, 34493, 75073, 106301, 342901, 448409, 975949, 1276241, 5829317, 12687337, 16591133, 215684729]

約数ペア:

[(1, 215684729), (13, 16591133), (17, 12687337), (37, 5829317), (169, 1276241), (221, 975949), (481, 448409), (629, 342901), (2029, 106301), (2873, 75073), (6253, 34493), (8177, 26377)]