20521105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8677}}^1$

素因数の和:8736

約数の個数: 16

約数和(自身を含む): 27491904

約数和(自身を除く): 6970799

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 8677, 43385, 95447, 373111, 477235, 1865555, 4104221, 20521105]

約数ペア:

[(1, 20521105), (5, 4104221), (11, 1865555), (43, 477235), (55, 373111), (215, 95447), (473, 43385), (2365, 8677)]