21730189

素因数分解:

${\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{1811}}^1$

素因数の和:1908

約数の個数: 12

約数和(自身を含む): 23874912

約数和(自身を除く): 2144723

約数列:

[1, 13, 71, 169, 923, 1811, 11999, 23543, 128581, 306059, 1671553, 21730189]

約数ペア:

[(1, 21730189), (13, 1671553), (71, 306059), (169, 128581), (923, 23543), (1811, 11999)]