20916784

素因数分解:

$2^4\times 7^1\times {\mathrm{186757}}^1$

素因数の和:186772

約数の個数: 20

約数和(自身を含む): 46315984

約数和(自身を除く): 25399200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 186757, 373514, 747028, 1307299, 1494056, 2614598, 2988112, 5229196, 10458392, 20916784]

約数ペア:

[(1, 20916784), (2, 10458392), (4, 5229196), (7, 2988112), (8, 2614598), (14, 1494056), (16, 1307299), (28, 747028), (56, 373514), (112, 186757)]