639074387

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{1621}}^1\times {\mathrm{3313}}^1$

素因数の和:4958

約数の個数: 16

約数和(自身を含む): 774044352

約数和(自身を除く): 134969965

約数列:

[1, 7, 17, 119, 1621, 3313, 11347, 23191, 27557, 56321, 192899, 394247, 5370373, 37592611, 91296341, 639074387]

約数ペア:

[(1, 639074387), (7, 91296341), (17, 37592611), (119, 5370373), (1621, 394247), (3313, 192899), (11347, 56321), (23191, 27557)]