1655397

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 20

約数和(自身を含む): 2509056

約数和(自身を除く): 853659

約数列:

[1, 3, 9, 27, 81, 107, 191, 321, 573, 963, 1719, 2889, 5157, 8667, 15471, 20437, 61311, 183933, 551799, 1655397]

約数ペア:

[(1, 1655397), (3, 551799), (9, 183933), (27, 61311), (81, 20437), (107, 15471), (191, 8667), (321, 5157), (573, 2889), (963, 1719)]