2191895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:370

約数の個数: 16

約数和(自身を含む): 2822688

約数和(自身を除く): 630793

約数列:

[1, 5, 17, 85, 107, 241, 535, 1205, 1819, 4097, 9095, 20485, 25787, 128935, 438379, 2191895]

約数ペア:

[(1, 2191895), (5, 438379), (17, 128935), (85, 25787), (107, 20485), (241, 9095), (535, 4097), (1205, 1819)]