19803951

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 29714256

約数和(自身を除く): 9910305

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 657, 701, 2103, 3139, 6309, 9417, 28251, 30143, 51173, 90429, 153519, 271287, 460557, 2200439, 6601317, 19803951]

約数ペア:

[(1, 19803951), (3, 6601317), (9, 2200439), (43, 460557), (73, 271287), (129, 153519), (219, 90429), (387, 51173), (657, 30143), (701, 28251), (2103, 9417), (3139, 6309)]