201321218

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{388651}}^1$

素因数の和:388697

約数の個数: 16

約数和(自身を含む): 354450624

約数和(自身を除く): 153129406

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 388651, 777302, 2720557, 5441114, 14380087, 28760174, 100660609, 201321218]

約数ペア:

[(1, 201321218), (2, 100660609), (7, 28760174), (14, 14380087), (37, 5441114), (74, 2720557), (259, 777302), (518, 388651)]