19720581609

素因数分解:

$3^1\times {\mathrm{1213}}^1\times {\mathrm{1373}}^1\times {\mathrm{3947}}^1$

素因数の和:6536

約数の個数: 16

約数和(自身を含む): 26341624512

約数和(自身を除く): 6621042903

約数列:

[1, 3, 1213, 1373, 3639, 3947, 4119, 11841, 1665449, 4787711, 4996347, 5419231, 14363133, 16257693, 6573527203, 19720581609]

約数ペア:

[(1, 19720581609), (3, 6573527203), (1213, 16257693), (1373, 14363133), (3639, 5419231), (3947, 4996347), (4119, 4787711), (11841, 1665449)]