21777025

素因数分解:

$5^2\times {\mathrm{821}}^1\times {\mathrm{1061}}^1$

素因数の和:1892

約数の個数: 12

約数和(自身を含む): 27061884

約数和(自身を除く): 5284859

約数列:

[1, 5, 25, 821, 1061, 4105, 5305, 20525, 26525, 871081, 4355405, 21777025]

約数ペア:

[(1, 21777025), (5, 4355405), (25, 871081), (821, 26525), (1061, 20525), (4105, 5305)]