20547849

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57557}}^1$

素因数の和:57584

約数の個数: 16

約数和(自身を含む): 33153408

約数和(自身を除く): 12605559

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57557, 172671, 402899, 978469, 1208697, 2935407, 6849283, 20547849]

約数ペア:

[(1, 20547849), (3, 6849283), (7, 2935407), (17, 1208697), (21, 978469), (51, 402899), (119, 172671), (357, 57557)]