20804644

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15809}}^1$

素因数の和:15867

約数の個数: 24

約数和(自身を含む): 42497280

約数和(自身を除く): 21692636

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15809, 31618, 63236, 110663, 221326, 442652, 743023, 1486046, 2972092, 5201161, 10402322, 20804644]

約数ペア:

[(1, 20804644), (2, 10402322), (4, 5201161), (7, 2972092), (14, 1486046), (28, 743023), (47, 442652), (94, 221326), (188, 110663), (329, 63236), (658, 31618), (1316, 15809)]