28319697

素因数分解:

$3^2\times 7^2\times {\mathrm{64217}}^1$

素因数の和:64237

約数の個数: 18

約数和(自身を含む): 47585538

約数和(自身を除く): 19265841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 64217, 192651, 449519, 577953, 1348557, 3146633, 4045671, 9439899, 28319697]

約数ペア:

[(1, 28319697), (3, 9439899), (7, 4045671), (9, 3146633), (21, 1348557), (49, 577953), (63, 449519), (147, 192651), (441, 64217)]