20330919

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1559}}^1$

素因数の和:1601

約数の個数: 40

約数和(自身を含む): 36241920

約数和(自身を除く): 15911001

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1559, 1863, 4347, 4677, 10913, 13041, 14031, 32739, 35857, 42093, 98217, 107571, 126279, 250999, 294651, 322713, 752997, 883953, 968139, 2258991, 2904417, 6776973, 20330919]

約数ペア:

[(1, 20330919), (3, 6776973), (7, 2904417), (9, 2258991), (21, 968139), (23, 883953), (27, 752997), (63, 322713), (69, 294651), (81, 250999), (161, 126279), (189, 107571), (207, 98217), (483, 42093), (567, 35857), (621, 32739), (1449, 14031), (1559, 13041), (1863, 10913), (4347, 4677)]