21705605

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{937}}^1$

素因数の和:1096

約数の個数: 16

約数和(自身を含む): 26946864

約数和(自身を除く): 5241259

約数列:

[1, 5, 41, 113, 205, 565, 937, 4633, 4685, 23165, 38417, 105881, 192085, 529405, 4341121, 21705605]

約数ペア:

[(1, 21705605), (5, 4341121), (41, 529405), (113, 192085), (205, 105881), (565, 38417), (937, 23165), (4633, 4685)]