20989675

素因数分解:

$5^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{433}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 29921696

約数和(自身を除く): 8932021

約数列:

[1, 5, 7, 25, 35, 175, 277, 433, 1385, 1939, 2165, 3031, 6925, 9695, 10825, 15155, 48475, 75775, 119941, 599705, 839587, 2998525, 4197935, 20989675]

約数ペア:

[(1, 20989675), (5, 4197935), (7, 2998525), (25, 839587), (35, 599705), (175, 119941), (277, 75775), (433, 48475), (1385, 15155), (1939, 10825), (2165, 9695), (3031, 6925)]