21778478

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{4219}}^1$

素因数の和:4339

約数の個数: 16

約数和(自身を含む): 34182000

約数和(自身を除く): 12403522

約数列:

[1, 2, 29, 58, 89, 178, 2581, 4219, 5162, 8438, 122351, 244702, 375491, 750982, 10889239, 21778478]

約数ペア:

[(1, 21778478), (2, 10889239), (29, 750982), (58, 375491), (89, 244702), (178, 122351), (2581, 8438), (4219, 5162)]