2019857721

素因数分解:

$3^1\times 7^1\times {\mathrm{4663}}^1\times {\mathrm{20627}}^1$

素因数の和:25300

約数の個数: 16

約数和(自身を含む): 3078687744

約数和(自身を除く): 1058830023

約数列:

[1, 3, 7, 21, 4663, 13989, 20627, 32641, 61881, 97923, 144389, 433167, 96183701, 288551103, 673285907, 2019857721]

約数ペア:

[(1, 2019857721), (3, 673285907), (7, 288551103), (21, 96183701), (4663, 433167), (13989, 144389), (20627, 97923), (32641, 61881)]