18990428

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1447}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 35394912

約数和(自身を除く): 16404484

約数列:

[1, 2, 4, 17, 34, 68, 193, 386, 772, 1447, 2894, 3281, 5788, 6562, 13124, 24599, 49198, 98396, 279271, 558542, 1117084, 4747607, 9495214, 18990428]

約数ペア:

[(1, 18990428), (2, 9495214), (4, 4747607), (17, 1117084), (34, 558542), (68, 279271), (193, 98396), (386, 49198), (772, 24599), (1447, 13124), (2894, 6562), (3281, 5788)]