21490282

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22717}}^1$

素因数の和:22773

約数の個数: 16

約数和(自身を含む): 35985312

約数和(自身を除く): 14495030

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 22717, 45434, 249887, 499774, 976831, 1953662, 10745141, 21490282]

約数ペア:

[(1, 21490282), (2, 10745141), (11, 1953662), (22, 976831), (43, 499774), (86, 249887), (473, 45434), (946, 22717)]