27891981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12547}}^1$

素因数の和:12585

約数の個数: 24

約数和(自身を含む): 45674720

約数和(自身を除く): 17782739

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 12547, 37641, 112923, 163111, 238393, 489333, 715179, 1467999, 2145537, 3099109, 9297327, 27891981]

約数ペア:

[(1, 27891981), (3, 9297327), (9, 3099109), (13, 2145537), (19, 1467999), (39, 715179), (57, 489333), (117, 238393), (171, 163111), (247, 112923), (741, 37641), (2223, 12547)]