21207464880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12623491}}^1$

素因数の和:12623514

約数の個数: 80

約数和(自身を含む): 75135024384

約数和(自身を除く): 53927559504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12623491, 25246982, 37870473, 50493964, 63117455, 75740946, 88364437, 100987928, 126234910, 151481892, 176728874, 189352365, 201975856, 252469820, 265093311, 302963784, 353457748, 378704730, 441822185, 504939640, 530186622, 605927568, 706915496, 757409460, 883644370, 1009879280, 1060373244, 1325466555, 1413830992, 1514818920, 1767288740, 2120746488, 2650933110, 3029637840, 3534577480, 4241492976, 5301866220, 7069154960, 10603732440, 21207464880]

約数ペア:

[(1, 21207464880), (2, 10603732440), (3, 7069154960), (4, 5301866220), (5, 4241492976), (6, 3534577480), (7, 3029637840), (8, 2650933110), (10, 2120746488), (12, 1767288740), (14, 1514818920), (15, 1413830992), (16, 1325466555), (20, 1060373244), (21, 1009879280), (24, 883644370), (28, 757409460), (30, 706915496), (35, 605927568), (40, 530186622), (42, 504939640), (48, 441822185), (56, 378704730), (60, 353457748), (70, 302963784), (80, 265093311), (84, 252469820), (105, 201975856), (112, 189352365), (120, 176728874), (140, 151481892), (168, 126234910), (210, 100987928), (240, 88364437), (280, 75740946), (336, 63117455), (420, 50493964), (560, 37870473), (840, 25246982), (1680, 12623491)]