27888920409

素因数分解:

$3^1\times 7^2\times {\mathrm{1129}}^1\times {\mathrm{168043}}^1$

素因数の和:169189

約数の個数: 24

約数和(自身を含む): 43294856160

約数和(自身を除く): 15405935751

約数列:

[1, 3, 7, 21, 49, 147, 1129, 3387, 7903, 23709, 55321, 165963, 168043, 504129, 1176301, 3528903, 8234107, 24702321, 189720547, 569161641, 1328043829, 3984131487, 9296306803, 27888920409]

約数ペア:

[(1, 27888920409), (3, 9296306803), (7, 3984131487), (21, 1328043829), (49, 569161641), (147, 189720547), (1129, 24702321), (3387, 8234107), (7903, 3528903), (23709, 1176301), (55321, 504129), (165963, 168043)]