20198476

素因数分解:

$2^2\times {\mathrm{43}}^2\times {\mathrm{2731}}^1$

素因数の和:2821

約数の個数: 18

約数和(自身を含む): 36201732

約数和(自身を除く): 16003256

約数列:

[1, 2, 4, 43, 86, 172, 1849, 2731, 3698, 5462, 7396, 10924, 117433, 234866, 469732, 5049619, 10099238, 20198476]

約数ペア:

[(1, 20198476), (2, 10099238), (4, 5049619), (43, 469732), (86, 234866), (172, 117433), (1849, 10924), (2731, 7396), (3698, 5462)]