131205963

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{328837}}^1$

素因数の和:328866

約数の個数: 16

約数和(自身を含む): 210456320

約数和(自身を除く): 79250357

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 328837, 986511, 2301859, 6247903, 6905577, 18743709, 43735321, 131205963]

約数ペア:

[(1, 131205963), (3, 43735321), (7, 18743709), (19, 6905577), (21, 6247903), (57, 2301859), (133, 986511), (399, 328837)]