18812538

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 42020160

約数和(自身を除く): 23207622

約数列:

[1, 2, 3, 6, 9, 18, 73, 103, 139, 146, 206, 219, 278, 309, 417, 438, 618, 657, 834, 927, 1251, 1314, 1854, 2502, 7519, 10147, 14317, 15038, 20294, 22557, 28634, 30441, 42951, 45114, 60882, 67671, 85902, 91323, 128853, 135342, 182646, 257706, 1045141, 2090282, 3135423, 6270846, 9406269, 18812538]

約数ペア:

[(1, 18812538), (2, 9406269), (3, 6270846), (6, 3135423), (9, 2090282), (18, 1045141), (73, 257706), (103, 182646), (139, 135342), (146, 128853), (206, 91323), (219, 85902), (278, 67671), (309, 60882), (417, 45114), (438, 42951), (618, 30441), (657, 28634), (834, 22557), (927, 20294), (1251, 15038), (1314, 14317), (1854, 10147), (2502, 7519)]