19380207

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 33707520

約数和(自身を除く): 14327313

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 121, 203, 231, 263, 319, 363, 609, 789, 847, 957, 1841, 2233, 2541, 2893, 3509, 5523, 6699, 7627, 8679, 10527, 20251, 22881, 24563, 31823, 53389, 60753, 73689, 83897, 95469, 160167, 222761, 251691, 587279, 668283, 922867, 1761837, 2768601, 6460069, 19380207]

約数ペア:

[(1, 19380207), (3, 6460069), (7, 2768601), (11, 1761837), (21, 922867), (29, 668283), (33, 587279), (77, 251691), (87, 222761), (121, 160167), (203, 95469), (231, 83897), (263, 73689), (319, 60753), (363, 53389), (609, 31823), (789, 24563), (847, 22881), (957, 20251), (1841, 10527), (2233, 8679), (2541, 7627), (2893, 6699), (3509, 5523)]