28518889

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 33408000

約数和(自身を除く): 4889111

約数列:

[1, 7, 59, 199, 347, 413, 1393, 2429, 11741, 20473, 69053, 82187, 143311, 483371, 4074127, 28518889]

約数ペア:

[(1, 28518889), (7, 4074127), (59, 483371), (199, 143311), (347, 82187), (413, 69053), (1393, 20473), (2429, 11741)]