21238426

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{10847}}^1$

素因数の和:10949

約数の個数: 16

約数和(自身を含む): 35147520

約数和(自身を除く): 13909094

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 10847, 21694, 119317, 238634, 965383, 1930766, 10619213, 21238426]

約数ペア:

[(1, 21238426), (2, 10619213), (11, 1930766), (22, 965383), (89, 238634), (178, 119317), (979, 21694), (1958, 10847)]