20730689427

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1\times {\mathrm{829}}^1$

素因数の和:1336

約数の個数: 64

約数和(自身を含む): 33044889600

約数和(自身を除く): 12314200173

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 321, 359, 651, 749, 829, 1077, 2247, 2487, 2513, 3317, 5803, 7539, 9951, 11129, 17409, 23219, 25699, 33387, 38413, 69657, 77097, 77903, 88703, 115239, 179893, 233709, 266109, 268891, 297611, 539679, 620921, 806673, 892833, 1190803, 1862763, 2083277, 2749793, 3572409, 6249831, 8249379, 8335621, 9225941, 19248551, 25006863, 27677823, 31844377, 57745653, 64581587, 95533131, 193744761, 222910639, 668731917, 987175687, 2961527061, 6910229809, 20730689427]

約数ペア:

[(1, 20730689427), (3, 6910229809), (7, 2961527061), (21, 987175687), (31, 668731917), (93, 222910639), (107, 193744761), (217, 95533131), (321, 64581587), (359, 57745653), (651, 31844377), (749, 27677823), (829, 25006863), (1077, 19248551), (2247, 9225941), (2487, 8335621), (2513, 8249379), (3317, 6249831), (5803, 3572409), (7539, 2749793), (9951, 2083277), (11129, 1862763), (17409, 1190803), (23219, 892833), (25699, 806673), (33387, 620921), (38413, 539679), (69657, 297611), (77097, 268891), (77903, 266109), (88703, 233709), (115239, 179893)]