19718946

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4957}}^1$

素因数の和:4995

約数の個数: 48

約数和(自身を含む): 48727224

約数和(自身を除く): 29008278

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 4957, 9914, 14871, 29742, 44613, 64441, 84269, 89226, 128882, 168538, 193323, 252807, 386646, 505614, 579969, 758421, 1095497, 1159938, 1516842, 2190994, 3286491, 6572982, 9859473, 19718946]

約数ペア:

[(1, 19718946), (2, 9859473), (3, 6572982), (6, 3286491), (9, 2190994), (13, 1516842), (17, 1159938), (18, 1095497), (26, 758421), (34, 579969), (39, 505614), (51, 386646), (78, 252807), (102, 193323), (117, 168538), (153, 128882), (221, 89226), (234, 84269), (306, 64441), (442, 44613), (663, 29742), (1326, 14871), (1989, 9914), (3978, 4957)]