18745897

素因数分解:

${\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:360

約数の個数: 16

約数和(自身を含む): 20337408

約数和(自身を除く): 1591511

約数列:

[1, 23, 41, 103, 193, 943, 2369, 4223, 4439, 7913, 19879, 97129, 181999, 457217, 815039, 18745897]

約数ペア:

[(1, 18745897), (23, 815039), (41, 457217), (103, 181999), (193, 97129), (943, 19879), (2369, 7913), (4223, 4439)]