19955061

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4339}}^1$

素因数の和:4425

約数の個数: 24

約数和(自身を含む): 33400640

約数和(自身を除く): 13445579

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4339, 4599, 13017, 30373, 39051, 91119, 273357, 316747, 950241, 2217229, 2850723, 6651687, 19955061]

約数ペア:

[(1, 19955061), (3, 6651687), (7, 2850723), (9, 2217229), (21, 950241), (63, 316747), (73, 273357), (219, 91119), (511, 39051), (657, 30373), (1533, 13017), (4339, 4599)]