21611812

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{3851}}^1$

素因数の和:3939

約数の個数: 24

約数和(自身を含む): 40122432

約数和(自身を除く): 18510620

約数列:

[1, 2, 4, 23, 46, 61, 92, 122, 244, 1403, 2806, 3851, 5612, 7702, 15404, 88573, 177146, 234911, 354292, 469822, 939644, 5402953, 10805906, 21611812]

約数ペア:

[(1, 21611812), (2, 10805906), (4, 5402953), (23, 939644), (46, 469822), (61, 354292), (92, 234911), (122, 177146), (244, 88573), (1403, 15404), (2806, 7702), (3851, 5612)]