21000388633

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{4363}}^1\times {\mathrm{15991}}^1$

素因数の和:20404

約数の個数: 16

約数和(自身を含む): 24565758976

約数和(自身を除く): 3565370343

約数列:

[1, 7, 43, 301, 4363, 15991, 30541, 111937, 187609, 687613, 1313263, 4813291, 69768733, 488381131, 3000055519, 21000388633]

約数ペア:

[(1, 21000388633), (7, 3000055519), (43, 488381131), (301, 69768733), (4363, 4813291), (15991, 1313263), (30541, 687613), (111937, 187609)]