21109286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{2137}}^1$

素因数の和:2599

約数の個数: 16

約数和(自身を含む): 34635600

約数和(自身を除く): 13526314

約数列:

[1, 2, 11, 22, 449, 898, 2137, 4274, 4939, 9878, 23507, 47014, 959513, 1919026, 10554643, 21109286]

約数ペア:

[(1, 21109286), (2, 10554643), (11, 1919026), (22, 959513), (449, 47014), (898, 23507), (2137, 9878), (4274, 4939)]