20321049

素因数分解:

$3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{1987}}^1$

素因数の和:2484

約数の個数: 16

約数和(自身を含む): 31044608

約数和(自身を除く): 10723559

約数列:

[1, 3, 7, 21, 487, 1461, 1987, 3409, 5961, 10227, 13909, 41727, 967669, 2903007, 6773683, 20321049]

約数ペア:

[(1, 20321049), (3, 6773683), (7, 2903007), (21, 967669), (487, 41727), (1461, 13909), (1987, 10227), (3409, 5961)]