21742010

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{6991}}^1$

素因数の和:7309

約数の個数: 16

約数和(自身を含む): 39267072

約数和(自身を除く): 17525062

約数列:

[1, 2, 5, 10, 311, 622, 1555, 3110, 6991, 13982, 34955, 69910, 2174201, 4348402, 10871005, 21742010]

約数ペア:

[(1, 21742010), (2, 10871005), (5, 4348402), (10, 2174201), (311, 69910), (622, 34955), (1555, 13982), (3110, 6991)]