20403913636

素因数分解:

$2^2\times {\mathrm{647}}^1\times {\mathrm{7884047}}^1$

素因数の和:7884698

約数の個数: 12

約数和(自身を含む): 35762041728

約数和(自身を除く): 15358128092

約数列:

[1, 2, 4, 647, 1294, 2588, 7884047, 15768094, 31536188, 5100978409, 10201956818, 20403913636]

約数ペア:

[(1, 20403913636), (2, 10201956818), (4, 5100978409), (647, 31536188), (1294, 15768094), (2588, 7884047)]