21358924

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 38186960

約数和(自身を除く): 16828036

約数列:

[1, 2, 4, 73, 146, 193, 292, 379, 386, 758, 772, 1516, 14089, 27667, 28178, 55334, 56356, 73147, 110668, 146294, 292588, 5339731, 10679462, 21358924]

約数ペア:

[(1, 21358924), (2, 10679462), (4, 5339731), (73, 292588), (146, 146294), (193, 110668), (292, 73147), (379, 56356), (386, 55334), (758, 28178), (772, 27667), (1516, 14089)]