28381743

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3323}}^1$

素因数の和:3415

約数の個数: 24

約数和(自身を含む): 44767632

約数和(自身を除く): 16385889

約数列:

[1, 3, 9, 13, 39, 73, 117, 219, 657, 949, 2847, 3323, 8541, 9969, 29907, 43199, 129597, 242579, 388791, 727737, 2183211, 3153527, 9460581, 28381743]

約数ペア:

[(1, 28381743), (3, 9460581), (9, 3153527), (13, 2183211), (39, 727737), (73, 388791), (117, 242579), (219, 129597), (657, 43199), (949, 29907), (2847, 9969), (3323, 8541)]