19400311

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{733}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 23488000

約数和(自身を除く): 4087689

約数列:

[1, 7, 19, 133, 199, 733, 1393, 3781, 5131, 13927, 26467, 97489, 145867, 1021069, 2771473, 19400311]

約数ペア:

[(1, 19400311), (7, 2771473), (19, 1021069), (133, 145867), (199, 97489), (733, 26467), (1393, 13927), (3781, 5131)]