28045017

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{283}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 54996032

約数和(自身を除く): 26951015

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 121, 143, 231, 273, 283, 363, 429, 693, 819, 847, 849, 1001, 1089, 1287, 1573, 1981, 2541, 2547, 3003, 3113, 3679, 4719, 5943, 7623, 9009, 9339, 11011, 11037, 14157, 17829, 21791, 25753, 28017, 33033, 33111, 34243, 40469, 65373, 77259, 99099, 102729, 121407, 196119, 231777, 239701, 283283, 308187, 364221, 445159, 719103, 849849, 1335477, 2157309, 2549547, 3116113, 4006431, 9348339, 28045017]

約数ペア:

[(1, 28045017), (3, 9348339), (7, 4006431), (9, 3116113), (11, 2549547), (13, 2157309), (21, 1335477), (33, 849849), (39, 719103), (63, 445159), (77, 364221), (91, 308187), (99, 283283), (117, 239701), (121, 231777), (143, 196119), (231, 121407), (273, 102729), (283, 99099), (363, 77259), (429, 65373), (693, 40469), (819, 34243), (847, 33111), (849, 33033), (1001, 28017), (1089, 25753), (1287, 21791), (1573, 17829), (1981, 14157), (2541, 11037), (2547, 11011), (3003, 9339), (3113, 9009), (3679, 7623), (4719, 5943)]