21090691773

素因数分解:

$3^2\times {\mathrm{709}}^1\times {\mathrm{3305233}}^1$

素因数の和:3305948

約数の個数: 12

約数和(自身を含む): 30507309820

約数和(自身を除く): 9416618047

約数列:

[1, 3, 9, 709, 2127, 6381, 3305233, 9915699, 29747097, 2343410197, 7030230591, 21090691773]

約数ペア:

[(1, 21090691773), (3, 7030230591), (9, 2343410197), (709, 29747097), (2127, 9915699), (6381, 3305233)]