20778286

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{1549}}^1$

素因数の和:1923

約数の個数: 16

約数和(自身を含む): 32922000

約数和(自身を除く): 12143714

約数列:

[1, 2, 19, 38, 353, 706, 1549, 3098, 6707, 13414, 29431, 58862, 546797, 1093594, 10389143, 20778286]

約数ペア:

[(1, 20778286), (2, 10389143), (19, 1093594), (38, 546797), (353, 58862), (706, 29431), (1549, 13414), (3098, 6707)]