21541743

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{17471}}^1$

素因数の和:17614

約数の個数: 12

約数和(自身を含む): 31344768

約数和(自身を除く): 9803025

約数列:

[1, 3, 9, 137, 411, 1233, 17471, 52413, 157239, 2393527, 7180581, 21541743]

約数ペア:

[(1, 21541743), (3, 7180581), (9, 2393527), (137, 157239), (411, 52413), (1233, 17471)]