21343245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1087}}^1$

素因数の和:1130

約数の個数: 64

約数和(自身を含む): 45121536

約数和(自身を除く): 23778291

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 1087, 1155, 1309, 1785, 2805, 3261, 3927, 5435, 6545, 7609, 11957, 16305, 18479, 19635, 22827, 35871, 38045, 55437, 59785, 83699, 92395, 114135, 129353, 179355, 203269, 251097, 277185, 388059, 418495, 609807, 646765, 1016345, 1255485, 1422883, 1940295, 3049035, 4268649, 7114415, 21343245]

約数ペア:

[(1, 21343245), (3, 7114415), (5, 4268649), (7, 3049035), (11, 1940295), (15, 1422883), (17, 1255485), (21, 1016345), (33, 646765), (35, 609807), (51, 418495), (55, 388059), (77, 277185), (85, 251097), (105, 203269), (119, 179355), (165, 129353), (187, 114135), (231, 92395), (255, 83699), (357, 59785), (385, 55437), (561, 38045), (595, 35871), (935, 22827), (1087, 19635), (1155, 18479), (1309, 16305), (1785, 11957), (2805, 7609), (3261, 6545), (3927, 5435)]