13706721

素因数分解:

$3^2\times 7^2\times {\mathrm{31081}}^1$

素因数の和:31101

約数の個数: 18

約数和(自身を含む): 23031762

約数和(自身を除く): 9325041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 31081, 93243, 217567, 279729, 652701, 1522969, 1958103, 4568907, 13706721]

約数ペア:

[(1, 13706721), (3, 4568907), (7, 1958103), (9, 1522969), (21, 652701), (49, 279729), (63, 217567), (147, 93243), (441, 31081)]