19085781

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2617}}^1$

素因数の和:2661

約数の個数: 32

約数和(自身を含む): 31667328

約数和(自身を除く): 12581547

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 2617, 7293, 7851, 28787, 34021, 44489, 86361, 102063, 133467, 374231, 489379, 578357, 1122693, 1468137, 1735071, 6361927, 19085781]

約数ペア:

[(1, 19085781), (3, 6361927), (11, 1735071), (13, 1468137), (17, 1122693), (33, 578357), (39, 489379), (51, 374231), (143, 133467), (187, 102063), (221, 86361), (429, 44489), (561, 34021), (663, 28787), (2431, 7851), (2617, 7293)]