19945206

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 44952336

約数和(自身を除く): 25007130

約数列:

[1, 2, 3, 6, 9, 18, 43, 73, 86, 129, 146, 219, 258, 353, 387, 438, 657, 706, 774, 1059, 1314, 2118, 3139, 3177, 6278, 6354, 9417, 15179, 18834, 25769, 28251, 30358, 45537, 51538, 56502, 77307, 91074, 136611, 154614, 231921, 273222, 463842, 1108067, 2216134, 3324201, 6648402, 9972603, 19945206]

約数ペア:

[(1, 19945206), (2, 9972603), (3, 6648402), (6, 3324201), (9, 2216134), (18, 1108067), (43, 463842), (73, 273222), (86, 231921), (129, 154614), (146, 136611), (219, 91074), (258, 77307), (353, 56502), (387, 51538), (438, 45537), (657, 30358), (706, 28251), (774, 25769), (1059, 18834), (1314, 15179), (2118, 9417), (3139, 6354), (3177, 6278)]