18820386

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{80429}}^1$

素因数の和:80450

約数の個数: 24

約数和(自身を含む): 43914780

約数和(自身を除く): 25094394

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 80429, 160858, 241287, 482574, 723861, 1045577, 1447722, 2091154, 3136731, 6273462, 9410193, 18820386]

約数ペア:

[(1, 18820386), (2, 9410193), (3, 6273462), (6, 3136731), (9, 2091154), (13, 1447722), (18, 1045577), (26, 723861), (39, 482574), (78, 241287), (117, 160858), (234, 80429)]