20901782

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{86371}}^1$

素因数の和:86395

約数の個数: 12

約数和(自身を含む): 34462428

約数和(自身を除く): 13560646

約数列:

[1, 2, 11, 22, 121, 242, 86371, 172742, 950081, 1900162, 10450891, 20901782]

約数ペア:

[(1, 20901782), (2, 10450891), (11, 1900162), (22, 950081), (121, 172742), (242, 86371)]