206545689

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{463}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 349952512

約数和(自身を除く): 143406823

約数列:

[1, 3, 7, 9, 21, 63, 73, 97, 219, 291, 463, 511, 657, 679, 873, 1389, 1533, 2037, 3241, 4167, 4599, 6111, 7081, 9723, 21243, 29169, 33799, 44911, 49567, 63729, 101397, 134733, 148701, 236593, 304191, 314377, 404199, 446103, 709779, 943131, 2129337, 2829393, 3278503, 9835509, 22949521, 29506527, 68848563, 206545689]

約数ペア:

[(1, 206545689), (3, 68848563), (7, 29506527), (9, 22949521), (21, 9835509), (63, 3278503), (73, 2829393), (97, 2129337), (219, 943131), (291, 709779), (463, 446103), (511, 404199), (657, 314377), (679, 304191), (873, 236593), (1389, 148701), (1533, 134733), (2037, 101397), (3241, 63729), (4167, 49567), (4599, 44911), (6111, 33799), (7081, 29169), (9723, 21243)]