21000481227

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{539761}}^1$

素因数の和:539912

約数の個数: 32

約数和(自身を含む): 34199320320

約数和(自身を除く): 13198839093

約数列:

[1, 3, 9, 11, 27, 33, 99, 131, 297, 393, 1179, 1441, 3537, 4323, 12969, 38907, 539761, 1619283, 4857849, 5937371, 14573547, 17812113, 53436339, 70708691, 160309017, 212126073, 636378219, 777795601, 1909134657, 2333386803, 7000160409, 21000481227]

約数ペア:

[(1, 21000481227), (3, 7000160409), (9, 2333386803), (11, 1909134657), (27, 777795601), (33, 636378219), (99, 212126073), (131, 160309017), (297, 70708691), (393, 53436339), (1179, 17812113), (1441, 14573547), (3537, 5937371), (4323, 4857849), (12969, 1619283), (38907, 539761)]