20016669

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 28312416

約数和(自身を除く): 8295747

約数列:

[1, 3, 31, 53, 93, 131, 159, 393, 961, 1643, 2883, 4061, 4929, 6943, 12183, 20829, 50933, 125891, 152799, 215233, 377673, 645699, 6672223, 20016669]

約数ペア:

[(1, 20016669), (3, 6672223), (31, 645699), (53, 377673), (93, 215233), (131, 152799), (159, 125891), (393, 50933), (961, 20829), (1643, 12183), (2883, 6943), (4061, 4929)]