21556887

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{34381}}^1$

素因数の和:34414

約数の個数: 16

約数和(自身を含む): 33006720

約数和(自身を除く): 11449833

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 34381, 103143, 378191, 653239, 1134573, 1959717, 7185629, 21556887]

約数ペア:

[(1, 21556887), (3, 7185629), (11, 1959717), (19, 1134573), (33, 653239), (57, 378191), (209, 103143), (627, 34381)]