1980213039

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{109519}}^1$

素因数の和:109580

約数の個数: 36

約数和(自身を含む): 3408481440

約数和(自身を除く): 1428268401

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 2009, 2583, 6027, 18081, 109519, 328557, 766633, 985671, 2299899, 4490279, 5366431, 6899697, 13470837, 16099293, 31431953, 40412511, 48297879, 94295859, 220023671, 282887577, 660071013, 1980213039]

約数ペア:

[(1, 1980213039), (3, 660071013), (7, 282887577), (9, 220023671), (21, 94295859), (41, 48297879), (49, 40412511), (63, 31431953), (123, 16099293), (147, 13470837), (287, 6899697), (369, 5366431), (441, 4490279), (861, 2299899), (2009, 985671), (2583, 766633), (6027, 328557), (18081, 109519)]