19812849

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{15991}}^1$

素因数の和:16060

約数の個数: 16

約数和(自身を含む): 30704640

約数和(自身を除く): 10891791

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 15991, 47973, 111937, 335811, 943469, 2830407, 6604283, 19812849]

約数ペア:

[(1, 19812849), (3, 6604283), (7, 2830407), (21, 943469), (59, 335811), (177, 111937), (413, 47973), (1239, 15991)]