20178946431

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^3\times {\mathrm{571}}^1$

素因数の和:694

約数の個数: 96

約数和(自身を含む): 36064005120

約数和(自身を除く): 15885058689

約数列:

[1, 3, 7, 9, 21, 23, 29, 63, 69, 87, 161, 203, 207, 261, 483, 571, 609, 667, 841, 1449, 1713, 1827, 2001, 2523, 3997, 4669, 5139, 5887, 6003, 7569, 11991, 13133, 14007, 16559, 17661, 19343, 24389, 35973, 39399, 42021, 49677, 52983, 58029, 73167, 91931, 115913, 118197, 135401, 149031, 170723, 174087, 219501, 275793, 347739, 380857, 406203, 480211, 512169, 560947, 827379, 1043217, 1142571, 1218609, 1440633, 1536507, 1682841, 2665999, 3361477, 3427713, 3926629, 4321899, 5048523, 7997997, 10084431, 11044853, 11779887, 13926119, 23993991, 30253293, 33134559, 35339661, 41778357, 77313971, 97482833, 99403677, 125335071, 231941913, 292448499, 320300737, 695825739, 877345497, 960902211, 2242105159, 2882706633, 6726315477, 20178946431]

約数ペア:

[(1, 20178946431), (3, 6726315477), (7, 2882706633), (9, 2242105159), (21, 960902211), (23, 877345497), (29, 695825739), (63, 320300737), (69, 292448499), (87, 231941913), (161, 125335071), (203, 99403677), (207, 97482833), (261, 77313971), (483, 41778357), (571, 35339661), (609, 33134559), (667, 30253293), (841, 23993991), (1449, 13926119), (1713, 11779887), (1827, 11044853), (2001, 10084431), (2523, 7997997), (3997, 5048523), (4669, 4321899), (5139, 3926629), (5887, 3427713), (6003, 3361477), (7569, 2665999), (11991, 1682841), (13133, 1536507), (14007, 1440633), (16559, 1218609), (17661, 1142571), (19343, 1043217), (24389, 827379), (35973, 560947), (39399, 512169), (42021, 480211), (49677, 406203), (52983, 380857), (58029, 347739), (73167, 275793), (91931, 219501), (115913, 174087), (118197, 170723), (135401, 149031)]