16720496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{80387}}^1$

素因数の和:80408

約数の個数: 20

約数和(自身を含む): 34888392

約数和(自身を除く): 18167896

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 80387, 160774, 321548, 643096, 1045031, 1286192, 2090062, 4180124, 8360248, 16720496]

約数ペア:

[(1, 16720496), (2, 8360248), (4, 4180124), (8, 2090062), (13, 1286192), (16, 1045031), (26, 643096), (52, 321548), (104, 160774), (208, 80387)]