81580203

素因数分解:

$3^6\times {\mathrm{47}}^1\times {\mathrm{2381}}^1$

素因数の和:2446

約数の個数: 28

約数和(自身を含む): 124969248

約数和(自身を除く): 43389045

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 729, 1269, 2381, 3807, 7143, 11421, 21429, 34263, 64287, 111907, 192861, 335721, 578583, 1007163, 1735749, 3021489, 9064467, 27193401, 81580203]

約数ペア:

[(1, 81580203), (3, 27193401), (9, 9064467), (27, 3021489), (47, 1735749), (81, 1007163), (141, 578583), (243, 335721), (423, 192861), (729, 111907), (1269, 64287), (2381, 34263), (3807, 21429), (7143, 11421)]