20201889

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 29723904

約数和(自身を除く): 9522015

約数列:

[1, 3, 23, 37, 41, 69, 111, 123, 193, 579, 851, 943, 1517, 2553, 2829, 4439, 4551, 7141, 7913, 13317, 21423, 23739, 34891, 104673, 164243, 181999, 292781, 492729, 545997, 878343, 6733963, 20201889]

約数ペア:

[(1, 20201889), (3, 6733963), (23, 878343), (37, 545997), (41, 492729), (69, 292781), (111, 181999), (123, 164243), (193, 104673), (579, 34891), (851, 23739), (943, 21423), (1517, 13317), (2553, 7913), (2829, 7141), (4439, 4551)]