20552409

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2309}}^1$

素因数の和:2381

約数の個数: 24

約数和(自身を含む): 31711680

約数和(自身を除く): 11159271

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2309, 2967, 6927, 8901, 20781, 53107, 99287, 159321, 297861, 477963, 893583, 2283601, 6850803, 20552409]

約数ペア:

[(1, 20552409), (3, 6850803), (9, 2283601), (23, 893583), (43, 477963), (69, 297861), (129, 159321), (207, 99287), (387, 53107), (989, 20781), (2309, 8901), (2967, 6927)]