18517719

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 27408640

約数和(自身を除く): 8890921

約数列:

[1, 3, 11, 33, 121, 139, 363, 367, 417, 1101, 1529, 4037, 4587, 12111, 16819, 44407, 50457, 51013, 133221, 153039, 561143, 1683429, 6172573, 18517719]

約数ペア:

[(1, 18517719), (3, 6172573), (11, 1683429), (33, 561143), (121, 153039), (139, 133221), (363, 51013), (367, 50457), (417, 44407), (1101, 16819), (1529, 12111), (4037, 4587)]