28785471

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3947}}^1$

素因数の和:3991

約数の個数: 32

約数和(自身を含む): 47755008

約数和(自身を除く): 18969537

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 3947, 7293, 11841, 43417, 51311, 67099, 130251, 153933, 201297, 564421, 738089, 872287, 1693263, 2214267, 2616861, 9595157, 28785471]

約数ペア:

[(1, 28785471), (3, 9595157), (11, 2616861), (13, 2214267), (17, 1693263), (33, 872287), (39, 738089), (51, 564421), (143, 201297), (187, 153933), (221, 130251), (429, 67099), (561, 51311), (663, 43417), (2431, 11841), (3947, 7293)]