18938073

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 32941440

約数和(自身を除く): 14003367

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 121, 203, 231, 257, 319, 363, 609, 771, 847, 957, 1799, 2233, 2541, 2827, 3509, 5397, 6699, 7453, 8481, 10527, 19789, 22359, 24563, 31097, 52171, 59367, 73689, 81983, 93291, 156513, 217679, 245949, 573881, 653037, 901813, 1721643, 2705439, 6312691, 18938073]

約数ペア:

[(1, 18938073), (3, 6312691), (7, 2705439), (11, 1721643), (21, 901813), (29, 653037), (33, 573881), (77, 245949), (87, 217679), (121, 156513), (203, 93291), (231, 81983), (257, 73689), (319, 59367), (363, 52171), (609, 31097), (771, 24563), (847, 22359), (957, 19789), (1799, 10527), (2233, 8481), (2541, 7453), (2827, 6699), (3509, 5397)]