20158713

素因数分解:

$3^4\times {\mathrm{191}}^1\times {\mathrm{1303}}^1$

素因数の和:1506

約数の個数: 20

約数和(自身を含む): 30294528

約数和(自身を除く): 10135815

約数列:

[1, 3, 9, 27, 81, 191, 573, 1303, 1719, 3909, 5157, 11727, 15471, 35181, 105543, 248873, 746619, 2239857, 6719571, 20158713]

約数ペア:

[(1, 20158713), (3, 6719571), (9, 2239857), (27, 746619), (81, 248873), (191, 105543), (573, 35181), (1303, 15471), (1719, 11727), (3909, 5157)]