21523084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{489161}}^1$

素因数の和:489176

約数の個数: 12

約数和(自身を含む): 41089608

約数和(自身を除く): 19566524

約数列:

[1, 2, 4, 11, 22, 44, 489161, 978322, 1956644, 5380771, 10761542, 21523084]

約数ペア:

[(1, 21523084), (2, 10761542), (4, 5380771), (11, 1956644), (22, 978322), (44, 489161)]