21788008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{247591}}^1$

素因数の和:247608

約数の個数: 16

約数和(自身を含む): 44566560

約数和(自身を除く): 22778552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 247591, 495182, 990364, 1980728, 2723501, 5447002, 10894004, 21788008]

約数ペア:

[(1, 21788008), (2, 10894004), (4, 5447002), (8, 2723501), (11, 1980728), (22, 990364), (44, 495182), (88, 247591)]