20994471

素因数分解:

$3^6\times {\mathrm{31}}^1\times {\mathrm{929}}^1$

素因数の和:978

約数の個数: 28

約数和(自身を含む): 32527680

約数和(自身を除く): 11533209

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 729, 837, 929, 2511, 2787, 7533, 8361, 22599, 25083, 28799, 75249, 86397, 225747, 259191, 677241, 777573, 2332719, 6998157, 20994471]

約数ペア:

[(1, 20994471), (3, 6998157), (9, 2332719), (27, 777573), (31, 677241), (81, 259191), (93, 225747), (243, 86397), (279, 75249), (729, 28799), (837, 25083), (929, 22599), (2511, 8361), (2787, 7533)]