20886304

素因数分解:

$2^5\times {\mathrm{43}}^2\times {\mathrm{353}}^1$

素因数の和:449

約数の個数: 36

約数和(自身を含む): 42217686

約数和(自身を除く): 21331382

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 353, 688, 706, 1376, 1412, 1849, 2824, 3698, 5648, 7396, 11296, 14792, 15179, 29584, 30358, 59168, 60716, 121432, 242864, 485728, 652697, 1305394, 2610788, 5221576, 10443152, 20886304]

約数ペア:

[(1, 20886304), (2, 10443152), (4, 5221576), (8, 2610788), (16, 1305394), (32, 652697), (43, 485728), (86, 242864), (172, 121432), (344, 60716), (353, 59168), (688, 30358), (706, 29584), (1376, 15179), (1412, 14792), (1849, 11296), (2824, 7396), (3698, 5648)]