21081578

素因数分解:

$2^1\times 7^1\times {\mathrm{859}}^1\times {\mathrm{1753}}^1$

素因数の和:2621

約数の個数: 16

約数和(自身を含む): 36202560

約数和(自身を除く): 15120982

約数列:

[1, 2, 7, 14, 859, 1718, 1753, 3506, 6013, 12026, 12271, 24542, 1505827, 3011654, 10540789, 21081578]

約数ペア:

[(1, 21081578), (2, 10540789), (7, 3011654), (14, 1505827), (859, 24542), (1718, 12271), (1753, 12026), (3506, 6013)]