8720217

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{9787}}^1$

素因数の和:9810

約数の個数: 20

約数和(自身を含む): 14212176

約数和(自身を除く): 5491959

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 9787, 29361, 88083, 107657, 264249, 322971, 792747, 968913, 2906739, 8720217]

約数ペア:

[(1, 8720217), (3, 2906739), (9, 968913), (11, 792747), (27, 322971), (33, 264249), (81, 107657), (99, 88083), (297, 29361), (891, 9787)]