21750448

素因数分解:

$2^4\times {\mathrm{353}}^1\times {\mathrm{3851}}^1$

素因数の和:4212

約数の個数: 20

約数和(自身を含む): 42271848

約数和(自身を除く): 20521400

約数列:

[1, 2, 4, 8, 16, 353, 706, 1412, 2824, 3851, 5648, 7702, 15404, 30808, 61616, 1359403, 2718806, 5437612, 10875224, 21750448]

約数ペア:

[(1, 21750448), (2, 10875224), (4, 5437612), (8, 2718806), (16, 1359403), (353, 61616), (706, 30808), (1412, 15404), (2824, 7702), (3851, 5648)]