19962207

素因数分解:

$3^6\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:354

約数の個数: 28

約数和(自身を含む): 30297960

約数和(自身を除く): 10335753

約数列:

[1, 3, 9, 27, 81, 139, 197, 243, 417, 591, 729, 1251, 1773, 3753, 5319, 11259, 15957, 27383, 33777, 47871, 82149, 101331, 143613, 246447, 739341, 2218023, 6654069, 19962207]

約数ペア:

[(1, 19962207), (3, 6654069), (9, 2218023), (27, 739341), (81, 246447), (139, 143613), (197, 101331), (243, 82149), (417, 47871), (591, 33777), (729, 27383), (1251, 15957), (1773, 11259), (3753, 5319)]