21069729

素因数分解:

$3^2\times {\mathrm{971}}^1\times {\mathrm{2411}}^1$

素因数の和:3388

約数の個数: 12

約数和(自身を含む): 30478032

約数和(自身を除く): 9408303

約数列:

[1, 3, 9, 971, 2411, 2913, 7233, 8739, 21699, 2341081, 7023243, 21069729]

約数ペア:

[(1, 21069729), (3, 7023243), (9, 2341081), (971, 21699), (2411, 8739), (2913, 7233)]