20386161

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2309}}^1$

素因数の和:2430

約数の個数: 20

約数和(自身を含む): 30746100

約数和(自身を除く): 10359939

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2309, 2943, 6927, 8829, 20781, 62343, 187029, 251681, 755043, 2265129, 6795387, 20386161]

約数ペア:

[(1, 20386161), (3, 6795387), (9, 2265129), (27, 755043), (81, 251681), (109, 187029), (327, 62343), (981, 20781), (2309, 8829), (2943, 6927)]