21023343

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2909}}^1$

素因数の和:2999

約数の個数: 24

約数和(自身を含む): 33593040

約数和(自身を除く): 12569697

約数列:

[1, 3, 9, 11, 33, 73, 99, 219, 657, 803, 2409, 2909, 7227, 8727, 26181, 31999, 95997, 212357, 287991, 637071, 1911213, 2335927, 7007781, 21023343]

約数ペア:

[(1, 21023343), (3, 7007781), (9, 2335927), (11, 1911213), (33, 637071), (73, 287991), (99, 212357), (219, 95997), (657, 31999), (803, 26181), (2409, 8727), (2909, 7227)]