20781717

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{5573}}^1$

素因数の和:5700

約数の個数: 16

約数和(自身を含む): 30500928

約数和(自身を除く): 9719211

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 5573, 16719, 61303, 183909, 629749, 1889247, 6927239, 20781717]

約数ペア:

[(1, 20781717), (3, 6927239), (11, 1889247), (33, 629749), (113, 183909), (339, 61303), (1243, 16719), (3729, 5573)]