20684258

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 36983424

約数和(自身を除く): 16299166

約数列:

[1, 2, 7, 14, 37, 73, 74, 146, 259, 511, 518, 547, 1022, 1094, 2701, 3829, 5402, 7658, 18907, 20239, 37814, 39931, 40478, 79862, 141673, 279517, 283346, 559034, 1477447, 2954894, 10342129, 20684258]

約数ペア:

[(1, 20684258), (2, 10342129), (7, 2954894), (14, 1477447), (37, 559034), (73, 283346), (74, 279517), (146, 141673), (259, 79862), (511, 40478), (518, 39931), (547, 37814), (1022, 20239), (1094, 18907), (2701, 7658), (3829, 5402)]