21130307

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1777}}^1$

素因数の和:1858

約数の個数: 16

約数和(自身を含む): 24579072

約数和(自身を除く): 3448765

約数列:

[1, 11, 23, 47, 253, 517, 1081, 1777, 11891, 19547, 40871, 83519, 449581, 918709, 1920937, 21130307]

約数ペア:

[(1, 21130307), (11, 1920937), (23, 918709), (47, 449581), (253, 83519), (517, 40871), (1081, 19547), (1777, 11891)]