20803204816

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9353959}}^1$

素因数の和:9354106

約数の個数: 20

約数和(自身を含む): 40596186400

約数和(自身を除く): 19792981584

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9353959, 18707918, 37415836, 74831672, 149663344, 1300200301, 2600400602, 5200801204, 10401602408, 20803204816]

約数ペア:

[(1, 20803204816), (2, 10401602408), (4, 5200801204), (8, 2600400602), (16, 1300200301), (139, 149663344), (278, 74831672), (556, 37415836), (1112, 18707918), (2224, 9353959)]