278203419

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139871}}^1$

素因数の和:139907

約数の個数: 24

約数和(自身を含む): 458220672

約数和(自身を除く): 180017253

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 139871, 419613, 1258839, 1818323, 2377807, 5454969, 7133421, 16364907, 21400263, 30911491, 92734473, 278203419]

約数ペア:

[(1, 278203419), (3, 92734473), (9, 30911491), (13, 21400263), (17, 16364907), (39, 7133421), (51, 5454969), (117, 2377807), (153, 1818323), (221, 1258839), (663, 419613), (1989, 139871)]