20556438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{489439}}^1$

素因数の和:489451

約数の個数: 16

約数和(自身を含む): 46986240

約数和(自身を除く): 26429802

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 489439, 978878, 1468317, 2936634, 3426073, 6852146, 10278219, 20556438]

約数ペア:

[(1, 20556438), (2, 10278219), (3, 6852146), (6, 3426073), (7, 2936634), (14, 1468317), (21, 978878), (42, 489439)]