20996821287

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{179460011}}^1$

素因数の和:179460030

約数の個数: 12

約数和(自身を含む): 32661722184

約数和(自身を除く): 11664900897

約数列:

[1, 3, 9, 13, 39, 117, 179460011, 538380033, 1615140099, 2332980143, 6998940429, 20996821287]

約数ペア:

[(1, 20996821287), (3, 6998940429), (9, 2332980143), (13, 1615140099), (39, 538380033), (117, 179460011)]