21196592

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{30809}}^1$

素因数の和:30860

約数の個数: 20

約数和(自身を含む): 42024840

約数和(自身を除く): 20828248

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 30809, 61618, 123236, 246472, 492944, 1324787, 2649574, 5299148, 10598296, 21196592]

約数ペア:

[(1, 21196592), (2, 10598296), (4, 5299148), (8, 2649574), (16, 1324787), (43, 492944), (86, 246472), (172, 123236), (344, 61618), (688, 30809)]