21427398

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{709}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 49177440

約数和(自身を除く): 27750042

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 73, 138, 146, 207, 219, 414, 438, 657, 709, 1314, 1418, 1679, 2127, 3358, 4254, 5037, 6381, 10074, 12762, 15111, 16307, 30222, 32614, 48921, 51757, 97842, 103514, 146763, 155271, 293526, 310542, 465813, 931626, 1190411, 2380822, 3571233, 7142466, 10713699, 21427398]

約数ペア:

[(1, 21427398), (2, 10713699), (3, 7142466), (6, 3571233), (9, 2380822), (18, 1190411), (23, 931626), (46, 465813), (69, 310542), (73, 293526), (138, 155271), (146, 146763), (207, 103514), (219, 97842), (414, 51757), (438, 48921), (657, 32614), (709, 30222), (1314, 16307), (1418, 15111), (1679, 12762), (2127, 10074), (3358, 6381), (4254, 5037)]