639888907

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{601}}^1\times {\mathrm{1709}}^1$

素因数の和:2406

約数の個数: 16

約数和(自身を含む): 741182400

約数和(自身を除く): 101293493

約数列:

[1, 7, 89, 601, 623, 1709, 4207, 11963, 53489, 152101, 374423, 1027109, 1064707, 7189763, 91412701, 639888907]

約数ペア:

[(1, 639888907), (7, 91412701), (89, 7189763), (601, 1064707), (623, 1027109), (1709, 374423), (4207, 152101), (11963, 53489)]