19804444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{450101}}^1$

素因数の和:450116

約数の個数: 12

約数和(自身を含む): 37808568

約数和(自身を除く): 18004124

約数列:

[1, 2, 4, 11, 22, 44, 450101, 900202, 1800404, 4951111, 9902222, 19804444]

約数ペア:

[(1, 19804444), (2, 9902222), (4, 4951111), (11, 1800404), (22, 900202), (44, 450101)]