71223999

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2591}}^1$

素因数の和:2636

約数の個数: 48

約数和(自身を含む): 127650816

約数和(自身を除く): 56426817

約数列:

[1, 3, 7, 11, 17, 21, 33, 49, 51, 77, 119, 147, 187, 231, 357, 539, 561, 833, 1309, 1617, 2499, 2591, 3927, 7773, 9163, 18137, 27489, 28501, 44047, 54411, 85503, 126959, 132141, 199507, 308329, 380877, 484517, 598521, 924987, 1396549, 1453551, 2158303, 3391619, 4189647, 6474909, 10174857, 23741333, 71223999]

約数ペア:

[(1, 71223999), (3, 23741333), (7, 10174857), (11, 6474909), (17, 4189647), (21, 3391619), (33, 2158303), (49, 1453551), (51, 1396549), (77, 924987), (119, 598521), (147, 484517), (187, 380877), (231, 308329), (357, 199507), (539, 132141), (561, 126959), (833, 85503), (1309, 54411), (1617, 44047), (2499, 28501), (2591, 27489), (3927, 18137), (7773, 9163)]