21228824

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71719}}^1$

素因数の和:71762

約数の個数: 16

約数和(自身を含む): 40880400

約数和(自身を除く): 19651576

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 71719, 143438, 286876, 573752, 2653603, 5307206, 10614412, 21228824]

約数ペア:

[(1, 21228824), (2, 10614412), (4, 5307206), (8, 2653603), (37, 573752), (74, 286876), (148, 143438), (296, 71719)]