20778879

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37039}}^1$

素因数の和:37070

約数の個数: 16

約数和(自身を含む): 32002560

約数和(自身を除く): 11223681

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37039, 111117, 407429, 629663, 1222287, 1888989, 6926293, 20778879]

約数ペア:

[(1, 20778879), (3, 6926293), (11, 1888989), (17, 1222287), (33, 629663), (51, 407429), (187, 111117), (561, 37039)]