20255193

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7477}}^1$

素因数の和:7533

約数の個数: 24

約数和(自身を含む): 34219328

約数和(自身を除く): 13964135

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7477, 22431, 52339, 67293, 157017, 321511, 471051, 964533, 2250577, 2893599, 6751731, 20255193]

約数ペア:

[(1, 20255193), (3, 6751731), (7, 2893599), (9, 2250577), (21, 964533), (43, 471051), (63, 321511), (129, 157017), (301, 67293), (387, 52339), (903, 22431), (2709, 7477)]