21387297

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{5717}}^1$

素因数の和:5792

約数の個数: 16

約数和(自身を含む): 30191040

約数和(自身を除く): 8803743

約数列:

[1, 3, 29, 43, 87, 129, 1247, 3741, 5717, 17151, 165793, 245831, 497379, 737493, 7129099, 21387297]

約数ペア:

[(1, 21387297), (3, 7129099), (29, 737493), (43, 497379), (87, 245831), (129, 165793), (1247, 17151), (3741, 5717)]