21556029

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 32349856

約数和(自身を除く): 10793827

約数列:

[1, 3, 11, 33, 43, 121, 129, 363, 473, 1381, 1419, 4143, 5203, 15191, 15609, 45573, 59383, 167101, 178149, 501303, 653213, 1959639, 7185343, 21556029]

約数ペア:

[(1, 21556029), (3, 7185343), (11, 1959639), (33, 653213), (43, 501303), (121, 178149), (129, 167101), (363, 59383), (473, 45573), (1381, 15609), (1419, 15191), (4143, 5203)]