19988188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{454277}}^1$

素因数の和:454292

約数の個数: 12

約数和(自身を含む): 38159352

約数和(自身を除く): 18171164

約数列:

[1, 2, 4, 11, 22, 44, 454277, 908554, 1817108, 4997047, 9994094, 19988188]

約数ペア:

[(1, 19988188), (2, 9994094), (4, 4997047), (11, 1817108), (22, 908554), (44, 454277)]