21807544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{247813}}^1$

素因数の和:247830

約数の個数: 16

約数和(自身を含む): 44606520

約数和(自身を除く): 22798976

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 247813, 495626, 991252, 1982504, 2725943, 5451886, 10903772, 21807544]

約数ペア:

[(1, 21807544), (2, 10903772), (4, 5451886), (8, 2725943), (11, 1982504), (22, 991252), (44, 495626), (88, 247813)]