20525956

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42409}}^1$

素因数の和:42435

約数の個数: 18

約数和(自身を含む): 39483710

約数和(自身を除く): 18957754

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42409, 84818, 169636, 466499, 932998, 1865996, 5131489, 10262978, 20525956]

約数ペア:

[(1, 20525956), (2, 10262978), (4, 5131489), (11, 1865996), (22, 932998), (44, 466499), (121, 169636), (242, 84818), (484, 42409)]