20398389

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4447}}^1$

素因数の和:4600

約数の個数: 16

約数和(自身を含む): 29890560

約数和(自身を除く): 9492171

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4447, 4587, 13341, 48917, 146751, 618133, 1854399, 6799463, 20398389]

約数ペア:

[(1, 20398389), (3, 6799463), (11, 1854399), (33, 618133), (139, 146751), (417, 48917), (1529, 13341), (4447, 4587)]