639435

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:962

約数の個数: 16

約数和(自身を含む): 1046016

約数和(自身を除く): 406581

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 907, 2721, 4535, 13605, 42629, 127887, 213145, 639435]

約数ペア:

[(1, 639435), (3, 213145), (5, 127887), (15, 42629), (47, 13605), (141, 4535), (235, 2721), (705, 907)]