18901379

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{787}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 22391808

約数和(自身を除く): 3490429

約数列:

[1, 7, 47, 73, 329, 511, 787, 3431, 5509, 24017, 36989, 57451, 258923, 402157, 2700197, 18901379]

約数ペア:

[(1, 18901379), (7, 2700197), (47, 402157), (73, 258923), (329, 57451), (511, 36989), (787, 24017), (3431, 5509)]