388045287

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{143243}}^1$

素因数の和:143299

約数の個数: 24

約数和(自身を含む): 655484544

約数和(自身を除く): 267439257

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 143243, 429729, 1002701, 1289187, 3008103, 6159449, 9024309, 18478347, 43116143, 55435041, 129348429, 388045287]

約数ペア:

[(1, 388045287), (3, 129348429), (7, 55435041), (9, 43116143), (21, 18478347), (43, 9024309), (63, 6159449), (129, 3008103), (301, 1289187), (387, 1002701), (903, 429729), (2709, 143243)]