20254419

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 30201600

約数和(自身を除く): 9947181

約数列:

[1, 3, 9, 43, 129, 199, 263, 387, 597, 789, 1791, 2367, 8557, 11309, 25671, 33927, 52337, 77013, 101781, 157011, 471033, 2250491, 6751473, 20254419]

約数ペア:

[(1, 20254419), (3, 6751473), (9, 2250491), (43, 471033), (129, 157011), (199, 101781), (263, 77013), (387, 52337), (597, 33927), (789, 25671), (1791, 11309), (2367, 8557)]