217001855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{9857}}^1$

素因数の和:9923

約数の個数: 32

約数和(自身を含む): 323657856

約数和(自身を除く): 106656001

約数列:

[1, 5, 7, 17, 35, 37, 85, 119, 185, 259, 595, 629, 1295, 3145, 4403, 9857, 22015, 49285, 68999, 167569, 344995, 364709, 837845, 1172983, 1823545, 2552963, 5864915, 6200053, 12764815, 31000265, 43400371, 217001855]

約数ペア:

[(1, 217001855), (5, 43400371), (7, 31000265), (17, 12764815), (35, 6200053), (37, 5864915), (85, 2552963), (119, 1823545), (185, 1172983), (259, 837845), (595, 364709), (629, 344995), (1295, 167569), (3145, 68999), (4403, 49285), (9857, 22015)]