18994481

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:616

約数の個数: 16

約数和(自身を含む): 21790080

約数和(自身を除く): 2795599

約数列:

[1, 11, 23, 193, 253, 389, 2123, 4279, 4439, 8947, 48829, 75077, 98417, 825847, 1726771, 18994481]

約数ペア:

[(1, 18994481), (11, 1726771), (23, 825847), (193, 98417), (253, 75077), (389, 48829), (2123, 8947), (4279, 4439)]