20291284293

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{4057}}^1$

素因数の和:4302

約数の個数: 64

約数和(自身を含む): 32745527808

約数和(自身を除く): 12454243515

約数列:

[1, 3, 7, 21, 37, 41, 111, 123, 157, 259, 287, 471, 777, 861, 1099, 1517, 3297, 4057, 4551, 5809, 6437, 10619, 12171, 17427, 19311, 28399, 31857, 40663, 45059, 85197, 121989, 135177, 150109, 166337, 238169, 450327, 499011, 636949, 714507, 1050763, 1164359, 1667183, 1910847, 3152289, 3493077, 4458643, 5001549, 6154469, 13375929, 18463407, 23567113, 26114909, 43081283, 70701339, 78344727, 129243849, 164969791, 182804363, 494909373, 548413089, 966251633, 2898754899, 6763761431, 20291284293]

約数ペア:

[(1, 20291284293), (3, 6763761431), (7, 2898754899), (21, 966251633), (37, 548413089), (41, 494909373), (111, 182804363), (123, 164969791), (157, 129243849), (259, 78344727), (287, 70701339), (471, 43081283), (777, 26114909), (861, 23567113), (1099, 18463407), (1517, 13375929), (3297, 6154469), (4057, 5001549), (4551, 4458643), (5809, 3493077), (6437, 3152289), (10619, 1910847), (12171, 1667183), (17427, 1164359), (19311, 1050763), (28399, 714507), (31857, 636949), (40663, 499011), (45059, 450327), (85197, 238169), (121989, 166337), (135177, 150109)]