19867419

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 14727141

約数列:

[1, 3, 9, 11, 13, 33, 39, 43, 99, 117, 129, 143, 359, 387, 429, 473, 559, 1077, 1287, 1419, 1677, 3231, 3949, 4257, 4667, 5031, 6149, 11847, 14001, 15437, 18447, 35541, 42003, 46311, 51337, 55341, 138933, 154011, 169807, 200681, 462033, 509421, 602043, 1528263, 1806129, 2207491, 6622473, 19867419]

約数ペア:

[(1, 19867419), (3, 6622473), (9, 2207491), (11, 1806129), (13, 1528263), (33, 602043), (39, 509421), (43, 462033), (99, 200681), (117, 169807), (129, 154011), (143, 138933), (359, 55341), (387, 51337), (429, 46311), (473, 42003), (559, 35541), (1077, 18447), (1287, 15437), (1419, 14001), (1677, 11847), (3231, 6149), (3949, 5031), (4257, 4667)]