21809030

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{15919}}^1$

素因数の和:16063

約数の個数: 16

約数和(自身を含む): 39545280

約数和(自身を除く): 17736250

約数列:

[1, 2, 5, 10, 137, 274, 685, 1370, 15919, 31838, 79595, 159190, 2180903, 4361806, 10904515, 21809030]

約数ペア:

[(1, 21809030), (2, 10904515), (5, 4361806), (10, 2180903), (137, 159190), (274, 79595), (685, 31838), (1370, 15919)]