21000496968

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{63587}}^1$

素因数の和:63752

約数の個数: 128

約数和(自身を含む): 64096704000

約数和(自身を除く): 43096207032

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 88, 99, 108, 132, 139, 198, 216, 264, 278, 297, 396, 417, 556, 594, 792, 834, 1112, 1188, 1251, 1529, 1668, 2376, 2502, 3058, 3336, 3753, 4587, 5004, 6116, 7506, 9174, 10008, 12232, 13761, 15012, 18348, 27522, 30024, 36696, 41283, 55044, 63587, 82566, 110088, 127174, 165132, 190761, 254348, 330264, 381522, 508696, 572283, 699457, 763044, 1144566, 1398914, 1526088, 1716849, 2098371, 2289132, 2797828, 3433698, 4196742, 4578264, 5595656, 6295113, 6867396, 8393484, 8838593, 12590226, 13734792, 16786968, 17677186, 18885339, 25180452, 26515779, 35354372, 37770678, 50360904, 53031558, 70708744, 75541356, 79547337, 97224523, 106063116, 151082712, 159094674, 194449046, 212126232, 238642011, 291673569, 318189348, 388898092, 477284022, 583347138, 636378696, 777796184, 875020707, 954568044, 1166694276, 1750041414, 1909136088, 2333388552, 2625062121, 3500082828, 5250124242, 7000165656, 10500248484, 21000496968]

約数ペア:

[(1, 21000496968), (2, 10500248484), (3, 7000165656), (4, 5250124242), (6, 3500082828), (8, 2625062121), (9, 2333388552), (11, 1909136088), (12, 1750041414), (18, 1166694276), (22, 954568044), (24, 875020707), (27, 777796184), (33, 636378696), (36, 583347138), (44, 477284022), (54, 388898092), (66, 318189348), (72, 291673569), (88, 238642011), (99, 212126232), (108, 194449046), (132, 159094674), (139, 151082712), (198, 106063116), (216, 97224523), (264, 79547337), (278, 75541356), (297, 70708744), (396, 53031558), (417, 50360904), (556, 37770678), (594, 35354372), (792, 26515779), (834, 25180452), (1112, 18885339), (1188, 17677186), (1251, 16786968), (1529, 13734792), (1668, 12590226), (2376, 8838593), (2502, 8393484), (3058, 6867396), (3336, 6295113), (3753, 5595656), (4587, 4578264), (5004, 4196742), (6116, 3433698), (7506, 2797828), (9174, 2289132), (10008, 2098371), (12232, 1716849), (13761, 1526088), (15012, 1398914), (18348, 1144566), (27522, 763044), (30024, 699457), (36696, 572283), (41283, 508696), (55044, 381522), (63587, 330264), (82566, 254348), (110088, 190761), (127174, 165132)]