20813716

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67577}}^1$

素因数の和:67599

約数の個数: 24

約数和(自身を含む): 45412416

約数和(自身を除く): 24598700

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67577, 135154, 270308, 473039, 743347, 946078, 1486694, 1892156, 2973388, 5203429, 10406858, 20813716]

約数ペア:

[(1, 20813716), (2, 10406858), (4, 5203429), (7, 2973388), (11, 1892156), (14, 1486694), (22, 946078), (28, 743347), (44, 473039), (77, 270308), (154, 135154), (308, 67577)]