21557026

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{2221}}^1$

素因数の和:2457

約数の個数: 16

約数和(自身を含む): 33916608

約数和(自身を除く): 12359582

約数列:

[1, 2, 23, 46, 211, 422, 2221, 4442, 4853, 9706, 51083, 102166, 468631, 937262, 10778513, 21557026]

約数ペア:

[(1, 21557026), (2, 10778513), (23, 937262), (46, 468631), (211, 102166), (422, 51083), (2221, 9706), (4442, 4853)]