19128464

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27803}}^1$

素因数の和:27854

約数の個数: 20

約数和(自身を含む): 37924656

約数和(自身を除く): 18796192

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27803, 55606, 111212, 222424, 444848, 1195529, 2391058, 4782116, 9564232, 19128464]

約数ペア:

[(1, 19128464), (2, 9564232), (4, 4782116), (8, 2391058), (16, 1195529), (43, 444848), (86, 222424), (172, 111212), (344, 55606), (688, 27803)]