20681705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{10163}}^1$

素因数の和:10216

約数の個数: 16

約数和(自身を含む): 27808704

約数和(自身を除く): 7126999

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 10163, 50815, 111793, 376031, 558965, 1880155, 4136341, 20681705]

約数ペア:

[(1, 20681705), (5, 4136341), (11, 1880155), (37, 558965), (55, 376031), (185, 111793), (407, 50815), (2035, 10163)]