21012508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477557}}^1$

素因数の和:477572

約数の個数: 12

約数和(自身を含む): 40114872

約数和(自身を除く): 19102364

約数列:

[1, 2, 4, 11, 22, 44, 477557, 955114, 1910228, 5253127, 10506254, 21012508]

約数ペア:

[(1, 21012508), (2, 10506254), (4, 5253127), (11, 1910228), (22, 955114), (44, 477557)]