21050018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{2131}}^1$

素因数の和:2593

約数の個数: 16

約数和(自身を含む): 34538400

約数和(自身を除く): 13488382

約数列:

[1, 2, 11, 22, 449, 898, 2131, 4262, 4939, 9878, 23441, 46882, 956819, 1913638, 10525009, 21050018]

約数ペア:

[(1, 21050018), (2, 10525009), (11, 1913638), (22, 956819), (449, 46882), (898, 23441), (2131, 9878), (4262, 4939)]