28872789

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12323}}^1$

素因数の和:12408

約数の個数: 16

約数和(自身を含む): 42591744

約数和(自身を除く): 13718955

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 12323, 36969, 135553, 406659, 874933, 2624799, 9624263, 28872789]

約数ペア:

[(1, 28872789), (3, 9624263), (11, 2624799), (33, 874933), (71, 406659), (213, 135553), (781, 36969), (2343, 12323)]