21119211

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{2053}}^1$

素因数の和:2192

約数の個数: 20

約数和(自身を含む): 31812352

約数和(自身を除く): 10693141

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 2053, 3429, 6159, 10287, 18477, 55431, 166293, 260731, 782193, 2346579, 7039737, 21119211]

約数ペア:

[(1, 21119211), (3, 7039737), (9, 2346579), (27, 782193), (81, 260731), (127, 166293), (381, 55431), (1143, 18477), (2053, 10287), (3429, 6159)]