19845605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1447}}^1$

素因数の和:1676

約数の個数: 16

約数和(自身を含む): 25785984

約数和(自身を除く): 5940379

約数列:

[1, 5, 13, 65, 211, 1055, 1447, 2743, 7235, 13715, 18811, 94055, 305317, 1526585, 3969121, 19845605]

約数ペア:

[(1, 19845605), (5, 3969121), (13, 1526585), (65, 305317), (211, 94055), (1055, 18811), (1447, 13715), (2743, 7235)]