21120242

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73847}}^1$

素因数の和:73873

約数の個数: 16

約数和(自身を含む): 37219392

約数和(自身を除く): 16099150

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73847, 147694, 812317, 960011, 1624634, 1920022, 10560121, 21120242]

約数ペア:

[(1, 21120242), (2, 10560121), (11, 1920022), (13, 1624634), (22, 960011), (26, 812317), (143, 147694), (286, 73847)]