18996368

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27611}}^1$

素因数の和:27662

約数の個数: 20

約数和(自身を含む): 37662768

約数和(自身を除く): 18666400

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27611, 55222, 110444, 220888, 441776, 1187273, 2374546, 4749092, 9498184, 18996368]

約数ペア:

[(1, 18996368), (2, 9498184), (4, 4749092), (8, 2374546), (16, 1187273), (43, 441776), (86, 220888), (172, 110444), (344, 55222), (688, 27611)]