2221681

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 24

約数和(自身を含む): 2902592

約数和(自身を除く): 680911

約数列:

[1, 7, 11, 43, 61, 77, 121, 301, 427, 473, 671, 847, 2623, 3311, 4697, 5203, 7381, 18361, 28853, 36421, 51667, 201971, 317383, 2221681]

約数ペア:

[(1, 2221681), (7, 317383), (11, 201971), (43, 51667), (61, 36421), (77, 28853), (121, 18361), (301, 7381), (427, 5203), (473, 4697), (671, 3311), (847, 2623)]