16821783

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 28940800

約数和(自身を除く): 12119017

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 121, 171, 209, 271, 297, 363, 513, 627, 813, 1089, 1881, 2299, 2439, 2981, 3267, 5149, 5643, 6897, 7317, 8943, 15447, 20691, 26829, 32791, 46341, 56639, 62073, 80487, 98373, 139023, 169917, 295119, 509751, 623029, 885357, 1529253, 1869087, 5607261, 16821783]

約数ペア:

[(1, 16821783), (3, 5607261), (9, 1869087), (11, 1529253), (19, 885357), (27, 623029), (33, 509751), (57, 295119), (99, 169917), (121, 139023), (171, 98373), (209, 80487), (271, 62073), (297, 56639), (363, 46341), (513, 32791), (627, 26829), (813, 20691), (1089, 15447), (1881, 8943), (2299, 7317), (2439, 6897), (2981, 5643), (3267, 5149)]