21402315

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43237}}^1$

素因数の和:43259

約数の個数: 24

約数和(自身を含む): 40470768

約数和(自身を除く): 19068453

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 43237, 129711, 216185, 389133, 475607, 648555, 1426821, 1945665, 2378035, 4280463, 7134105, 21402315]

約数ペア:

[(1, 21402315), (3, 7134105), (5, 4280463), (9, 2378035), (11, 1945665), (15, 1426821), (33, 648555), (45, 475607), (55, 389133), (99, 216185), (165, 129711), (495, 43237)]