20749865

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{937}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 25753728

約数和(自身を除く): 5003863

約数列:

[1, 5, 43, 103, 215, 515, 937, 4429, 4685, 22145, 40291, 96511, 201455, 482555, 4149973, 20749865]

約数ペア:

[(1, 20749865), (5, 4149973), (43, 482555), (103, 201455), (215, 96511), (515, 40291), (937, 22145), (4429, 4685)]