19172087

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{83}}^2$

素因数の和:211

約数の個数: 18

約数和(自身を含む): 22257816

約数和(自身を除く): 3085729

約数列:

[1, 11, 23, 83, 121, 253, 913, 1909, 2783, 6889, 10043, 20999, 75779, 158447, 230989, 833569, 1742917, 19172087]

約数ペア:

[(1, 19172087), (11, 1742917), (23, 833569), (83, 230989), (121, 158447), (253, 75779), (913, 20999), (1909, 10043), (2783, 6889)]