388908039

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{17839}}^1$

素因数の和:17911

約数の個数: 24

約数和(自身を含む): 574590720

約数和(自身を除く): 185682681

約数列:

[1, 3, 13, 39, 43, 129, 169, 507, 559, 1677, 7267, 17839, 21801, 53517, 231907, 695721, 767077, 2301231, 3014791, 9044373, 9972001, 29916003, 129636013, 388908039]

約数ペア:

[(1, 388908039), (3, 129636013), (13, 29916003), (39, 9972001), (43, 9044373), (129, 3014791), (169, 2301231), (507, 767077), (559, 695721), (1677, 231907), (7267, 53517), (17839, 21801)]