21765591

素因数分解:

$3^4\times {\mathrm{379}}^1\times {\mathrm{709}}^1$

素因数の和:1100

約数の個数: 20

約数和(自身を含む): 32645800

約数和(自身を除く): 10880209

約数列:

[1, 3, 9, 27, 81, 379, 709, 1137, 2127, 3411, 6381, 10233, 19143, 30699, 57429, 268711, 806133, 2418399, 7255197, 21765591]

約数ペア:

[(1, 21765591), (3, 7255197), (9, 2418399), (27, 806133), (81, 268711), (379, 57429), (709, 30699), (1137, 19143), (2127, 10233), (3411, 6381)]