19888876

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16519}}^1$

素因数の和:16573

約数の個数: 24

約数和(自身を含む): 40705280

約数和(自身を除く): 20816404

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16519, 33038, 66076, 115633, 231266, 462532, 710317, 1420634, 2841268, 4972219, 9944438, 19888876]

約数ペア:

[(1, 19888876), (2, 9944438), (4, 4972219), (7, 2841268), (14, 1420634), (28, 710317), (43, 462532), (86, 231266), (172, 115633), (301, 66076), (602, 33038), (1204, 16519)]