15972309

素因数分解:

$3^4\times {\mathrm{293}}^1\times {\mathrm{673}}^1$

素因数の和:978

約数の個数: 20

約数和(自身を含む): 23976876

約数和(自身を除く): 8004567

約数列:

[1, 3, 9, 27, 81, 293, 673, 879, 2019, 2637, 6057, 7911, 18171, 23733, 54513, 197189, 591567, 1774701, 5324103, 15972309]

約数ペア:

[(1, 15972309), (3, 5324103), (9, 1774701), (27, 591567), (81, 197189), (293, 54513), (673, 23733), (879, 18171), (2019, 7911), (2637, 6057)]