19409985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1433}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 39371904

約数和(自身を除く): 19961919

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1433, 1505, 1935, 2709, 4299, 4515, 7165, 10031, 12897, 13545, 21495, 30093, 50155, 61619, 64485, 90279, 150465, 184857, 308095, 431333, 451395, 554571, 924285, 1293999, 2156665, 2772855, 3881997, 6469995, 19409985]

約数ペア:

[(1, 19409985), (3, 6469995), (5, 3881997), (7, 2772855), (9, 2156665), (15, 1293999), (21, 924285), (35, 554571), (43, 451395), (45, 431333), (63, 308095), (105, 184857), (129, 150465), (215, 90279), (301, 64485), (315, 61619), (387, 50155), (645, 30093), (903, 21495), (1433, 13545), (1505, 12897), (1935, 10031), (2709, 7165), (4299, 4515)]