18717831

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 14459769

約数列:

[1, 3, 9, 11, 19, 27, 31, 33, 57, 93, 99, 107, 171, 209, 279, 297, 321, 341, 513, 589, 627, 837, 963, 1023, 1177, 1767, 1881, 2033, 2889, 3069, 3317, 3531, 5301, 5643, 6099, 6479, 9207, 9951, 10593, 15903, 18297, 19437, 22363, 29853, 31779, 36487, 54891, 58311, 63023, 67089, 89559, 109461, 174933, 189069, 201267, 328383, 567207, 603801, 693253, 985149, 1701621, 2079759, 6239277, 18717831]

約数ペア:

[(1, 18717831), (3, 6239277), (9, 2079759), (11, 1701621), (19, 985149), (27, 693253), (31, 603801), (33, 567207), (57, 328383), (93, 201267), (99, 189069), (107, 174933), (171, 109461), (209, 89559), (279, 67089), (297, 63023), (321, 58311), (341, 54891), (513, 36487), (589, 31779), (627, 29853), (837, 22363), (963, 19437), (1023, 18297), (1177, 15903), (1767, 10593), (1881, 9951), (2033, 9207), (2889, 6479), (3069, 6099), (3317, 5643), (3531, 5301)]