639425666

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{937}}^1\times {\mathrm{31019}}^1$

素因数の和:31969

約数の個数: 16

約数和(自身を含む): 1047483360

約数和(自身を除く): 408057694

約数列:

[1, 2, 11, 22, 937, 1874, 10307, 20614, 31019, 62038, 341209, 682418, 29064803, 58129606, 319712833, 639425666]

約数ペア:

[(1, 639425666), (2, 319712833), (11, 58129606), (22, 29064803), (937, 682418), (1874, 341209), (10307, 62038), (20614, 31019)]