20555199

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3931}}^1$

素因数の和:4027

約数の個数: 24

約数和(自身を含む): 34349952

約数和(自身を除く): 13794753

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 3931, 5229, 11793, 27517, 35379, 82551, 247653, 326273, 978819, 2283911, 2936457, 6851733, 20555199]

約数ペア:

[(1, 20555199), (3, 6851733), (7, 2936457), (9, 2283911), (21, 978819), (63, 326273), (83, 247653), (249, 82551), (581, 35379), (747, 27517), (1743, 11793), (3931, 5229)]