20403819

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2311}}^1$

素因数の和:2432

約数の個数: 20

約数和(自身を含む): 30772720

約数和(自身を除く): 10368901

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2311, 2943, 6933, 8829, 20799, 62397, 187191, 251899, 755697, 2267091, 6801273, 20403819]

約数ペア:

[(1, 20403819), (3, 6801273), (9, 2267091), (27, 755697), (81, 251899), (109, 187191), (327, 62397), (981, 20799), (2311, 8829), (2943, 6933)]