19962018

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 46475520

約数和(自身を除く): 26513502

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 97, 103, 111, 194, 206, 222, 291, 309, 333, 582, 618, 666, 873, 927, 999, 1746, 1854, 1998, 2619, 2781, 3589, 3811, 5238, 5562, 7178, 7622, 9991, 10767, 11433, 19982, 21534, 22866, 29973, 32301, 34299, 59946, 64602, 68598, 89919, 96903, 102897, 179838, 193806, 205794, 269757, 369667, 539514, 739334, 1109001, 2218002, 3327003, 6654006, 9981009, 19962018]

約数ペア:

[(1, 19962018), (2, 9981009), (3, 6654006), (6, 3327003), (9, 2218002), (18, 1109001), (27, 739334), (37, 539514), (54, 369667), (74, 269757), (97, 205794), (103, 193806), (111, 179838), (194, 102897), (206, 96903), (222, 89919), (291, 68598), (309, 64602), (333, 59946), (582, 34299), (618, 32301), (666, 29973), (873, 22866), (927, 21534), (999, 19982), (1746, 11433), (1854, 10767), (1998, 9991), (2619, 7622), (2781, 7178), (3589, 5562), (3811, 5238)]