18734259

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{4451}}^1$

素因数の和:4538

約数の個数: 16

約数和(自身を含む): 26498304

約数和(自身を除く): 7764045

約数列:

[1, 3, 23, 61, 69, 183, 1403, 4209, 4451, 13353, 102373, 271511, 307119, 814533, 6244753, 18734259]

約数ペア:

[(1, 18734259), (3, 6244753), (23, 814533), (61, 307119), (69, 271511), (183, 102373), (1403, 13353), (4209, 4451)]