13855815

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1889}}^1$

素因数の和:2063

約数の個数: 24

約数和(自身を含む): 24176880

約数和(自身を除く): 10321065

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 1889, 2445, 5667, 7335, 9445, 17001, 28335, 85005, 307907, 923721, 1539535, 2771163, 4618605, 13855815]

約数ペア:

[(1, 13855815), (3, 4618605), (5, 2771163), (9, 1539535), (15, 923721), (45, 307907), (163, 85005), (489, 28335), (815, 17001), (1467, 9445), (1889, 7335), (2445, 5667)]