20996858673

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{661}}^1\times {\mathrm{6907}}^1$

素因数の和:7654

約数の個数: 48

約数和(自身を含む): 35194546816

約数和(自身を除く): 14197688143

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 661, 1533, 1983, 4599, 4627, 5949, 6907, 13881, 20721, 41643, 48253, 48349, 62163, 144759, 145047, 337771, 434277, 435141, 504211, 1013313, 1512633, 3039939, 3529477, 4537899, 4565527, 10588431, 13696581, 31765293, 31958689, 41089743, 95876067, 287628201, 333283471, 999850413, 2332984297, 2999551239, 6998952891, 20996858673]

約数ペア:

[(1, 20996858673), (3, 6998952891), (7, 2999551239), (9, 2332984297), (21, 999850413), (63, 333283471), (73, 287628201), (219, 95876067), (511, 41089743), (657, 31958689), (661, 31765293), (1533, 13696581), (1983, 10588431), (4599, 4565527), (4627, 4537899), (5949, 3529477), (6907, 3039939), (13881, 1512633), (20721, 1013313), (41643, 504211), (48253, 435141), (48349, 434277), (62163, 337771), (144759, 145047)]