21663279

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1723}}^1$

素因数の和:1867

約数の個数: 24

約数和(自身を含む): 34424832

約数和(自身を除く): 12761553

約数列:

[1, 3, 9, 11, 33, 99, 127, 381, 1143, 1397, 1723, 4191, 5169, 12573, 15507, 18953, 56859, 170577, 218821, 656463, 1969389, 2407031, 7221093, 21663279]

約数ペア:

[(1, 21663279), (3, 7221093), (9, 2407031), (11, 1969389), (33, 656463), (99, 218821), (127, 170577), (381, 56859), (1143, 18953), (1397, 15507), (1723, 12573), (4191, 5169)]