21342032

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18787}}^1$

素因数の和:18866

約数の個数: 20

約数和(自身を含む): 41934816

約数和(自身を除く): 20592784

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18787, 37574, 75148, 150296, 300592, 1333877, 2667754, 5335508, 10671016, 21342032]

約数ペア:

[(1, 21342032), (2, 10671016), (4, 5335508), (8, 2667754), (16, 1333877), (71, 300592), (142, 150296), (284, 75148), (568, 37574), (1136, 18787)]