20719595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{883}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 28291536

約数和(自身を除く): 7571941

約数列:

[1, 5, 13, 19, 65, 95, 247, 361, 883, 1235, 1805, 4415, 4693, 11479, 16777, 23465, 57395, 83885, 218101, 318763, 1090505, 1593815, 4143919, 20719595]

約数ペア:

[(1, 20719595), (5, 4143919), (13, 1593815), (19, 1090505), (65, 318763), (95, 218101), (247, 83885), (361, 57395), (883, 23465), (1235, 16777), (1805, 11479), (4415, 4693)]