20108965919

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1\times {\mathrm{1657}}^1$

素因数の和:2115

約数の個数: 32

約数和(自身を含む): 23694066816

約数和(自身を除く): 3585100897

約数列:

[1, 7, 61, 97, 293, 427, 679, 1657, 2051, 5917, 11599, 17873, 28421, 41419, 101077, 125111, 160729, 198947, 485501, 707539, 1125103, 1733681, 3398507, 9804469, 12135767, 29615561, 47093597, 68631283, 207308927, 329655179, 2872709417, 20108965919]

約数ペア:

[(1, 20108965919), (7, 2872709417), (61, 329655179), (97, 207308927), (293, 68631283), (427, 47093597), (679, 29615561), (1657, 12135767), (2051, 9804469), (5917, 3398507), (11599, 1733681), (17873, 1125103), (28421, 707539), (41419, 485501), (101077, 198947), (125111, 160729)]