27811959

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1381}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 43483248

約数和(自身を除く): 15671289

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 1381, 2877, 4143, 6713, 9667, 20139, 29001, 67669, 189197, 203007, 567591, 1324379, 3973137, 9270653, 27811959]

約数ペア:

[(1, 27811959), (3, 9270653), (7, 3973137), (21, 1324379), (49, 567591), (137, 203007), (147, 189197), (411, 67669), (959, 29001), (1381, 20139), (2877, 9667), (4143, 6713)]