21089912

素因数分解:

$2^3\times {\mathrm{1409}}^1\times {\mathrm{1871}}^1$

素因数の和:3286

約数の個数: 16

約数和(自身を含む): 39592800

約数和(自身を除く): 18502888

約数列:

[1, 2, 4, 8, 1409, 1871, 2818, 3742, 5636, 7484, 11272, 14968, 2636239, 5272478, 10544956, 21089912]

約数ペア:

[(1, 21089912), (2, 10544956), (4, 5272478), (8, 2636239), (1409, 14968), (1871, 11272), (2818, 7484), (3742, 5636)]