20816455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{821}}^1$

素因数の和:1298

約数の個数: 16

約数和(自身を含む): 27343008

約数和(自身を除く): 6526553

約数列:

[1, 5, 11, 55, 461, 821, 2305, 4105, 5071, 9031, 25355, 45155, 378481, 1892405, 4163291, 20816455]

約数ペア:

[(1, 20816455), (5, 4163291), (11, 1892405), (55, 378481), (461, 45155), (821, 25355), (2305, 9031), (4105, 5071)]