19943792

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2411}}^1$

素因数の和:2477

約数の個数: 40

約数和(自身を含む): 43068672

約数和(自身を除く): 23124880

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 176, 188, 376, 517, 752, 1034, 2068, 2411, 4136, 4822, 8272, 9644, 19288, 26521, 38576, 53042, 106084, 113317, 212168, 226634, 424336, 453268, 906536, 1246487, 1813072, 2492974, 4985948, 9971896, 19943792]

約数ペア:

[(1, 19943792), (2, 9971896), (4, 4985948), (8, 2492974), (11, 1813072), (16, 1246487), (22, 906536), (44, 453268), (47, 424336), (88, 226634), (94, 212168), (176, 113317), (188, 106084), (376, 53042), (517, 38576), (752, 26521), (1034, 19288), (2068, 9644), (2411, 8272), (4136, 4822)]