19998579

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{1237}}^1$

素因数の和:1574

約数の個数: 16

約数和(自身を含む): 28345248

約数和(自身を除く): 8346669

約数列:

[1, 3, 17, 51, 317, 951, 1237, 3711, 5389, 16167, 21029, 63087, 392129, 1176387, 6666193, 19998579]

約数ペア:

[(1, 19998579), (3, 6666193), (17, 1176387), (51, 392129), (317, 63087), (951, 21029), (1237, 16167), (3711, 5389)]