19908414

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 44444400

約数和(自身を除く): 24535986

約数列:

[1, 2, 3, 6, 9, 18, 73, 109, 139, 146, 218, 219, 278, 327, 417, 438, 654, 657, 834, 981, 1251, 1314, 1962, 2502, 7957, 10147, 15151, 15914, 20294, 23871, 30302, 30441, 45453, 47742, 60882, 71613, 90906, 91323, 136359, 143226, 182646, 272718, 1106023, 2212046, 3318069, 6636138, 9954207, 19908414]

約数ペア:

[(1, 19908414), (2, 9954207), (3, 6636138), (6, 3318069), (9, 2212046), (18, 1106023), (73, 272718), (109, 182646), (139, 143226), (146, 136359), (218, 91323), (219, 90906), (278, 71613), (327, 60882), (417, 47742), (438, 45453), (654, 30441), (657, 30302), (834, 23871), (981, 20294), (1251, 15914), (1314, 15151), (1962, 10147), (2502, 7957)]