21746440

素因数分解:

$2^3\times 5^1\times {\mathrm{543661}}^1$

素因数の和:543672

約数の個数: 16

約数和(自身を含む): 48929580

約数和(自身を除く): 27183140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 543661, 1087322, 2174644, 2718305, 4349288, 5436610, 10873220, 21746440]

約数ペア:

[(1, 21746440), (2, 10873220), (4, 5436610), (5, 4349288), (8, 2718305), (10, 2174644), (20, 1087322), (40, 543661)]