18279513

素因数分解:

$3^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:435

約数の個数: 40

約数和(自身を含む): 31611008

約数和(自身を除く): 13331495

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 103, 189, 309, 313, 567, 721, 927, 939, 2163, 2191, 2781, 2817, 6489, 6573, 8343, 8451, 19467, 19719, 25353, 32239, 58401, 59157, 96717, 177471, 225673, 290151, 677019, 870453, 2031057, 2611359, 6093171, 18279513]

約数ペア:

[(1, 18279513), (3, 6093171), (7, 2611359), (9, 2031057), (21, 870453), (27, 677019), (63, 290151), (81, 225673), (103, 177471), (189, 96717), (309, 59157), (313, 58401), (567, 32239), (721, 25353), (927, 19719), (939, 19467), (2163, 8451), (2191, 8343), (2781, 6573), (2817, 6489)]