20641269

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{563}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 30604896

約数和(自身を除く): 9963627

約数列:

[1, 3, 11, 33, 101, 121, 303, 363, 563, 1111, 1689, 3333, 6193, 12221, 18579, 36663, 56863, 68123, 170589, 204369, 625493, 1876479, 6880423, 20641269]

約数ペア:

[(1, 20641269), (3, 6880423), (11, 1876479), (33, 625493), (101, 204369), (121, 170589), (303, 68123), (363, 56863), (563, 36663), (1111, 18579), (1689, 12221), (3333, 6193)]