28259021

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1301}}^1$

素因数の和:1444

約数の個数: 16

約数和(自身を含む): 33747840

約数和(自身を除く): 5488819

約数列:

[1, 7, 29, 107, 203, 749, 1301, 3103, 9107, 21721, 37729, 139207, 264103, 974449, 4037003, 28259021]

約数ペア:

[(1, 28259021), (7, 4037003), (29, 974449), (107, 264103), (203, 139207), (749, 37729), (1301, 21721), (3103, 9107)]