21171432

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{137}}^2$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 54452160

約数和(自身を除く): 33280728

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 137, 141, 188, 274, 282, 376, 411, 548, 564, 822, 1096, 1128, 1644, 3288, 6439, 12878, 18769, 19317, 25756, 37538, 38634, 51512, 56307, 75076, 77268, 112614, 150152, 154536, 225228, 450456, 882143, 1764286, 2646429, 3528572, 5292858, 7057144, 10585716, 21171432]

約数ペア:

[(1, 21171432), (2, 10585716), (3, 7057144), (4, 5292858), (6, 3528572), (8, 2646429), (12, 1764286), (24, 882143), (47, 450456), (94, 225228), (137, 154536), (141, 150152), (188, 112614), (274, 77268), (282, 75076), (376, 56307), (411, 51512), (548, 38634), (564, 37538), (822, 25756), (1096, 19317), (1128, 18769), (1644, 12878), (3288, 6439)]