20387486

素因数分解:

$2^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2861}}^1$

素因数の和:3379

約数の個数: 16

約数和(自身を含む): 35030880

約数和(自身を除く): 14643394

約数列:

[1, 2, 7, 14, 509, 1018, 2861, 3563, 5722, 7126, 20027, 40054, 1456249, 2912498, 10193743, 20387486]

約数ペア:

[(1, 20387486), (2, 10193743), (7, 2912498), (14, 1456249), (509, 40054), (1018, 20027), (2861, 7126), (3563, 5722)]