18987684

素因数分解:

$2^2\times 3^1\times {\mathrm{1123}}^1\times {\mathrm{1409}}^1$

素因数の和:2539

約数の個数: 24

約数和(自身を含む): 44375520

約数和(自身を除く): 25387836

約数列:

[1, 2, 3, 4, 6, 12, 1123, 1409, 2246, 2818, 3369, 4227, 4492, 5636, 6738, 8454, 13476, 16908, 1582307, 3164614, 4746921, 6329228, 9493842, 18987684]

約数ペア:

[(1, 18987684), (2, 9493842), (3, 6329228), (4, 4746921), (6, 3164614), (12, 1582307), (1123, 16908), (1409, 13476), (2246, 8454), (2818, 6738), (3369, 5636), (4227, 4492)]