21449209544

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{127123}}^1$

素因数の和:127290

約数の個数: 64

約数和(自身を含む): 48327459840

約数和(自身を除く): 26878250296

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 131, 161, 184, 262, 322, 524, 644, 917, 1048, 1288, 1834, 3013, 3668, 6026, 7336, 12052, 21091, 24104, 42182, 84364, 127123, 168728, 254246, 508492, 889861, 1016984, 1779722, 2923829, 3559444, 5847658, 7118888, 11695316, 16653113, 20466803, 23390632, 33306226, 40933606, 66612452, 81867212, 116571791, 133224904, 163734424, 233143582, 383021599, 466287164, 766043198, 932574328, 1532086396, 2681151193, 3064172792, 5362302386, 10724604772, 21449209544]

約数ペア:

[(1, 21449209544), (2, 10724604772), (4, 5362302386), (7, 3064172792), (8, 2681151193), (14, 1532086396), (23, 932574328), (28, 766043198), (46, 466287164), (56, 383021599), (92, 233143582), (131, 163734424), (161, 133224904), (184, 116571791), (262, 81867212), (322, 66612452), (524, 40933606), (644, 33306226), (917, 23390632), (1048, 20466803), (1288, 16653113), (1834, 11695316), (3013, 7118888), (3668, 5847658), (6026, 3559444), (7336, 2923829), (12052, 1779722), (21091, 1016984), (24104, 889861), (42182, 508492), (84364, 254246), (127123, 168728)]