20727806

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21911}}^1$

素因数の和:21967

約数の個数: 16

約数和(自身を含む): 34708608

約数和(自身を除く): 13980802

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 21911, 43822, 241021, 482042, 942173, 1884346, 10363903, 20727806]

約数ペア:

[(1, 20727806), (2, 10363903), (11, 1884346), (22, 942173), (43, 482042), (86, 241021), (473, 43822), (946, 21911)]