28740411

素因数分解:

$3^2\times 7^2\times {\mathrm{65171}}^1$

素因数の和:65191

約数の個数: 18

約数和(自身を含む): 48292452

約数和(自身を除く): 19552041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65171, 195513, 456197, 586539, 1368591, 3193379, 4105773, 9580137, 28740411]

約数ペア:

[(1, 28740411), (3, 9580137), (7, 4105773), (9, 3193379), (21, 1368591), (49, 586539), (63, 456197), (147, 195513), (441, 65171)]