19994919

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13043}}^1$

素因数の和:13126

約数の個数: 16

約数和(自身を含む): 30888192

約数和(自身を除く): 10893273

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13043, 39129, 91301, 273903, 952139, 2856417, 6664973, 19994919]

約数ペア:

[(1, 19994919), (3, 6664973), (7, 2856417), (21, 952139), (73, 273903), (219, 91301), (511, 39129), (1533, 13043)]