21080103

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1301}}^1$

素因数の和:1806

約数の個数: 16

約数和(自身を含む): 30748032

約数和(自身を除く): 9667929

約数列:

[1, 3, 11, 33, 491, 1301, 1473, 3903, 5401, 14311, 16203, 42933, 638791, 1916373, 7026701, 21080103]

約数ペア:

[(1, 21080103), (3, 7026701), (11, 1916373), (33, 638791), (491, 42933), (1301, 16203), (1473, 14311), (3903, 5401)]