21085582008

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{3217}}^1\times {\mathrm{6661}}^1$

素因数の和:9928

約数の個数: 64

約数和(自身を含む): 54024556320

約数和(自身を除く): 32938974312

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984, 3217, 6434, 6661, 9651, 12868, 13322, 19302, 19983, 25736, 26644, 38604, 39966, 53288, 77208, 79932, 131897, 159864, 263794, 273101, 395691, 527588, 546202, 791382, 819303, 1055176, 1092404, 1582764, 1638606, 2184808, 3165528, 3277212, 6554424, 21428437, 42856874, 64285311, 85713748, 128570622, 171427496, 257141244, 514282488, 878565917, 1757131834, 2635697751, 3514263668, 5271395502, 7028527336, 10542791004, 21085582008]

約数ペア:

[(1, 21085582008), (2, 10542791004), (3, 7028527336), (4, 5271395502), (6, 3514263668), (8, 2635697751), (12, 1757131834), (24, 878565917), (41, 514282488), (82, 257141244), (123, 171427496), (164, 128570622), (246, 85713748), (328, 64285311), (492, 42856874), (984, 21428437), (3217, 6554424), (6434, 3277212), (6661, 3165528), (9651, 2184808), (12868, 1638606), (13322, 1582764), (19302, 1092404), (19983, 1055176), (25736, 819303), (26644, 791382), (38604, 546202), (39966, 527588), (53288, 395691), (77208, 273101), (79932, 263794), (131897, 159864)]