20906765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{463}}^1\times {\mathrm{821}}^1$

素因数の和:1300

約数の個数: 16

約数和(自身を含む): 27461376

約数和(自身を除く): 6554611

約数列:

[1, 5, 11, 55, 463, 821, 2315, 4105, 5093, 9031, 25465, 45155, 380123, 1900615, 4181353, 20906765]

約数ペア:

[(1, 20906765), (5, 4181353), (11, 1900615), (55, 380123), (463, 45155), (821, 25465), (2315, 9031), (4105, 5093)]