21000836297

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1\times {\mathrm{2549}}^1$

素因数の和:3353

約数の個数: 32

約数和(自身を含む): 25433740800

約数和(自身を除く): 4432904503

約数列:

[1, 7, 23, 73, 161, 511, 701, 1679, 2549, 4907, 11753, 16123, 17843, 51173, 58627, 112861, 186077, 358211, 410389, 1176979, 1302539, 1786849, 4279771, 8238853, 12507943, 29958397, 41097527, 130439977, 287682689, 913079839, 3000119471, 21000836297]

約数ペア:

[(1, 21000836297), (7, 3000119471), (23, 913079839), (73, 287682689), (161, 130439977), (511, 41097527), (701, 29958397), (1679, 12507943), (2549, 8238853), (4907, 4279771), (11753, 1786849), (16123, 1302539), (17843, 1176979), (51173, 410389), (58627, 358211), (112861, 186077)]