18840965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2027}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 26720928

約数和(自身を除く): 7879963

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 2027, 9295, 10135, 22297, 26351, 111485, 131755, 289861, 342563, 1449305, 1712815, 3768193, 18840965]

約数ペア:

[(1, 18840965), (5, 3768193), (11, 1712815), (13, 1449305), (55, 342563), (65, 289861), (143, 131755), (169, 111485), (715, 26351), (845, 22297), (1859, 10135), (2027, 9295)]