28576719

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{4969}}^1$

素因数の和:5052

約数の個数: 20

約数和(自身を含む): 43298640

約数和(自身を除く): 14721921

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 4969, 5751, 14907, 44721, 134163, 352799, 402489, 1058397, 3175191, 9525573, 28576719]

約数ペア:

[(1, 28576719), (3, 9525573), (9, 3175191), (27, 1058397), (71, 402489), (81, 352799), (213, 134163), (639, 44721), (1917, 14907), (4969, 5751)]