21711416

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20717}}^1$

素因数の和:20854

約数の個数: 16

約数和(自身を含む): 41021640

約数和(自身を除く): 19310224

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20717, 41434, 82868, 165736, 2713927, 5427854, 10855708, 21711416]

約数ペア:

[(1, 21711416), (2, 10855708), (4, 5427854), (8, 2713927), (131, 165736), (262, 82868), (524, 41434), (1048, 20717)]