20161983

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20807}}^1$

素因数の和:20846

約数の個数: 16

約数和(自身を含む): 29963520

約数和(自身を除く): 9801537

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 20807, 62421, 353719, 395333, 1061157, 1185999, 6720661, 20161983]

約数ペア:

[(1, 20161983), (3, 6720661), (17, 1185999), (19, 1061157), (51, 395333), (57, 353719), (323, 62421), (969, 20807)]