21577085

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1301}}^1$

素因数の和:1444

約数の個数: 16

約数和(自身を含む): 26998272

約数和(自身を除く): 5421187

約数列:

[1, 5, 31, 107, 155, 535, 1301, 3317, 6505, 16585, 40331, 139207, 201655, 696035, 4315417, 21577085]

約数ペア:

[(1, 21577085), (5, 4315417), (31, 696035), (107, 201655), (155, 139207), (535, 40331), (1301, 16585), (3317, 6505)]