81330963

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1979}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 131788800

約数和(自身を除く): 50457837

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 721, 1957, 1979, 2163, 5871, 5937, 13699, 13853, 37601, 41097, 41559, 112803, 203837, 263207, 611511, 789621, 1426859, 3872903, 4280577, 11618709, 27110321, 81330963]

約数ペア:

[(1, 81330963), (3, 27110321), (7, 11618709), (19, 4280577), (21, 3872903), (57, 1426859), (103, 789621), (133, 611511), (309, 263207), (399, 203837), (721, 112803), (1957, 41559), (1979, 41097), (2163, 37601), (5871, 13853), (5937, 13699)]