18904226

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 31968000

約数和(自身を除く): 13063774

約数列:

[1, 2, 11, 22, 73, 79, 146, 149, 158, 298, 803, 869, 1606, 1639, 1738, 3278, 5767, 10877, 11534, 11771, 21754, 23542, 63437, 119647, 126874, 129481, 239294, 258962, 859283, 1718566, 9452113, 18904226]

約数ペア:

[(1, 18904226), (2, 9452113), (11, 1718566), (22, 859283), (73, 258962), (79, 239294), (146, 129481), (149, 126874), (158, 119647), (298, 63437), (803, 23542), (869, 21754), (1606, 11771), (1639, 11534), (1738, 10877), (3278, 5767)]