20507888

素因数分解:

$2^4\times {\mathrm{353}}^1\times {\mathrm{3631}}^1$

素因数の和:3992

約数の個数: 20

約数和(自身を含む): 39857568

約数和(自身を除く): 19349680

約数列:

[1, 2, 4, 8, 16, 353, 706, 1412, 2824, 3631, 5648, 7262, 14524, 29048, 58096, 1281743, 2563486, 5126972, 10253944, 20507888]

約数ペア:

[(1, 20507888), (2, 10253944), (4, 5126972), (8, 2563486), (16, 1281743), (353, 58096), (706, 29048), (1412, 14524), (2824, 7262), (3631, 5648)]