20257809

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47221}}^1$

素因数の和:47248

約数の個数: 16

約数和(自身を含む): 31733184

約数和(自身を除く): 11475375

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 47221, 141663, 519431, 613873, 1558293, 1841619, 6752603, 20257809]

約数ペア:

[(1, 20257809), (3, 6752603), (11, 1841619), (13, 1558293), (33, 613873), (39, 519431), (143, 141663), (429, 47221)]