210005719

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{389621}}^1$

素因数の和:389646

約数の個数: 12

約数和(自身を含む): 266501448

約数和(自身を除く): 56495729

約数列:

[1, 7, 11, 49, 77, 539, 389621, 2727347, 4285831, 19091429, 30000817, 210005719]

約数ペア:

[(1, 210005719), (7, 30000817), (11, 19091429), (49, 4285831), (77, 2727347), (539, 389621)]