20507782

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1039}}^1$

素因数の和:1251

約数の個数: 16

約数和(自身を含む): 31449600

約数和(自身を除く): 10941818

約数列:

[1, 2, 71, 139, 142, 278, 1039, 2078, 9869, 19738, 73769, 144421, 147538, 288842, 10253891, 20507782]

約数ペア:

[(1, 20507782), (2, 10253891), (71, 288842), (139, 147538), (142, 144421), (278, 73769), (1039, 19738), (2078, 9869)]