20641216

素因数分解:

$2^6\times {\mathrm{322519}}^1$

素因数の和:322531

約数の個数: 14

約数和(自身を含む): 40960040

約数和(自身を除く): 20318824

約数列:

[1, 2, 4, 8, 16, 32, 64, 322519, 645038, 1290076, 2580152, 5160304, 10320608, 20641216]

約数ペア:

[(1, 20641216), (2, 10320608), (4, 5160304), (8, 2580152), (16, 1290076), (32, 645038), (64, 322519)]