18130735

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1721}}^1$

素因数の和:1783

約数の個数: 24

約数和(自身を含む): 25912656

約数和(自身を除く): 7781921

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 301, 1505, 1721, 2107, 8605, 10535, 12047, 60235, 74003, 84329, 370015, 421645, 518021, 2590105, 3626147, 18130735]

約数ペア:

[(1, 18130735), (5, 3626147), (7, 2590105), (35, 518021), (43, 421645), (49, 370015), (215, 84329), (245, 74003), (301, 60235), (1505, 12047), (1721, 10535), (2107, 8605)]