19557207

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{2909}}^1$

素因数の和:3004

約数の個数: 20

約数和(自身を含む): 29577240

約数和(自身を除く): 10020033

約数列:

[1, 3, 9, 27, 81, 83, 249, 747, 2241, 2909, 6723, 8727, 26181, 78543, 235629, 241447, 724341, 2173023, 6519069, 19557207]

約数ペア:

[(1, 19557207), (3, 6519069), (9, 2173023), (27, 724341), (81, 241447), (83, 235629), (249, 78543), (747, 26181), (2241, 8727), (2909, 6723)]