20439258

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 49109760

約数和(自身を除く): 28670502

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 97, 173, 174, 194, 203, 291, 346, 406, 519, 582, 609, 679, 1038, 1211, 1218, 1358, 2037, 2422, 2813, 3633, 4074, 5017, 5626, 7266, 8439, 10034, 15051, 16781, 16878, 19691, 30102, 33562, 35119, 39382, 50343, 59073, 70238, 100686, 105357, 117467, 118146, 210714, 234934, 352401, 486649, 704802, 973298, 1459947, 2919894, 3406543, 6813086, 10219629, 20439258]

約数ペア:

[(1, 20439258), (2, 10219629), (3, 6813086), (6, 3406543), (7, 2919894), (14, 1459947), (21, 973298), (29, 704802), (42, 486649), (58, 352401), (87, 234934), (97, 210714), (173, 118146), (174, 117467), (194, 105357), (203, 100686), (291, 70238), (346, 59073), (406, 50343), (519, 39382), (582, 35119), (609, 33562), (679, 30102), (1038, 19691), (1211, 16878), (1218, 16781), (1358, 15051), (2037, 10034), (2422, 8439), (2813, 7266), (3633, 5626), (4074, 5017)]