31215789

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4441}}^1$

素因数の和:4529

約数の個数: 24

約数和(自身を含む): 49892544

約数和(自身を除く): 18676755

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 4441, 7029, 13323, 39969, 48851, 146553, 315311, 439659, 945933, 2837799, 3468421, 10405263, 31215789]

約数ペア:

[(1, 31215789), (3, 10405263), (9, 3468421), (11, 2837799), (33, 945933), (71, 439659), (99, 315311), (213, 146553), (639, 48851), (781, 39969), (2343, 13323), (4441, 7029)]