21000228249

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:332

約数の個数: 256

約数和(自身を含む): 41617981440

約数和(自身を除く): 20617753191

約数列:

[1, 3, 7, 11, 13, 19, 21, 33, 39, 41, 47, 57, 77, 91, 123, 133, 141, 143, 191, 209, 231, 247, 273, 287, 329, 399, 429, 451, 517, 533, 573, 611, 627, 741, 779, 861, 893, 987, 1001, 1337, 1353, 1463, 1551, 1599, 1729, 1833, 1927, 2101, 2337, 2483, 2679, 2717, 3003, 3157, 3619, 3629, 3731, 4011, 4277, 4389, 5187, 5453, 5781, 5863, 6251, 6303, 6721, 7449, 7831, 8151, 8569, 8977, 9471, 9823, 10127, 10857, 10887, 11193, 11609, 12831, 13489, 14707, 16359, 17381, 17589, 18753, 19019, 20163, 21197, 23493, 25051, 25403, 25707, 26931, 27313, 29469, 30381, 34827, 36613, 39919, 40467, 41041, 44121, 47047, 47177, 52143, 54817, 57057, 59983, 62839, 63591, 68761, 70889, 75153, 76209, 81263, 81939, 86141, 98747, 101803, 109839, 111397, 116701, 119757, 123123, 127699, 141141, 141531, 148379, 148789, 164451, 170563, 175357, 179949, 188517, 191191, 206283, 212667, 243789, 256291, 258423, 275561, 279433, 296241, 305409, 330239, 334191, 350103, 368057, 383097, 402743, 445137, 446367, 475969, 511689, 518947, 526071, 573573, 602987, 691229, 712621, 768873, 779779, 816907, 826683, 838299, 893893, 990717, 1041523, 1104171, 1119833, 1193941, 1208229, 1283711, 1427907, 1556841, 1636679, 1808961, 1876193, 1928927, 1934257, 2073687, 2137863, 2217319, 2339337, 2450721, 2576399, 2681679, 2819201, 3124569, 3331783, 3359499, 3581823, 3632629, 3851133, 4048627, 4784741, 4910037, 5235659, 5628579, 5786781, 5802771, 6651957, 6993083, 7729197, 7838831, 8457603, 8985977, 9995349, 10897887, 11456753, 12145881, 13133351, 13539799, 14354223, 15521233, 15706977, 20979249, 21276827, 23516493, 24390509, 26957931, 28340389, 33493187, 34370259, 36649613, 39400053, 40619397, 46563699, 48951581, 52632151, 63830481, 73171527, 76923913, 85021167, 90910079, 100479561, 109948839, 146854743, 148937789, 157896453, 170733563, 230771739, 272730237, 368425057, 446813367, 512200689, 538467391, 636370553, 1000010869, 1105275171, 1615402173, 1909111659, 3000032607, 7000076083, 21000228249]

約数ペア:

[(1, 21000228249), (3, 7000076083), (7, 3000032607), (11, 1909111659), (13, 1615402173), (19, 1105275171), (21, 1000010869), (33, 636370553), (39, 538467391), (41, 512200689), (47, 446813367), (57, 368425057), (77, 272730237), (91, 230771739), (123, 170733563), (133, 157896453), (141, 148937789), (143, 146854743), (191, 109948839), (209, 100479561), (231, 90910079), (247, 85021167), (273, 76923913), (287, 73171527), (329, 63830481), (399, 52632151), (429, 48951581), (451, 46563699), (517, 40619397), (533, 39400053), (573, 36649613), (611, 34370259), (627, 33493187), (741, 28340389), (779, 26957931), (861, 24390509), (893, 23516493), (987, 21276827), (1001, 20979249), (1337, 15706977), (1353, 15521233), (1463, 14354223), (1551, 13539799), (1599, 13133351), (1729, 12145881), (1833, 11456753), (1927, 10897887), (2101, 9995349), (2337, 8985977), (2483, 8457603), (2679, 7838831), (2717, 7729197), (3003, 6993083), (3157, 6651957), (3619, 5802771), (3629, 5786781), (3731, 5628579), (4011, 5235659), (4277, 4910037), (4389, 4784741), (5187, 4048627), (5453, 3851133), (5781, 3632629), (5863, 3581823), (6251, 3359499), (6303, 3331783), (6721, 3124569), (7449, 2819201), (7831, 2681679), (8151, 2576399), (8569, 2450721), (8977, 2339337), (9471, 2217319), (9823, 2137863), (10127, 2073687), (10857, 1934257), (10887, 1928927), (11193, 1876193), (11609, 1808961), (12831, 1636679), (13489, 1556841), (14707, 1427907), (16359, 1283711), (17381, 1208229), (17589, 1193941), (18753, 1119833), (19019, 1104171), (20163, 1041523), (21197, 990717), (23493, 893893), (25051, 838299), (25403, 826683), (25707, 816907), (26931, 779779), (27313, 768873), (29469, 712621), (30381, 691229), (34827, 602987), (36613, 573573), (39919, 526071), (40467, 518947), (41041, 511689), (44121, 475969), (47047, 446367), (47177, 445137), (52143, 402743), (54817, 383097), (57057, 368057), (59983, 350103), (62839, 334191), (63591, 330239), (68761, 305409), (70889, 296241), (75153, 279433), (76209, 275561), (81263, 258423), (81939, 256291), (86141, 243789), (98747, 212667), (101803, 206283), (109839, 191191), (111397, 188517), (116701, 179949), (119757, 175357), (123123, 170563), (127699, 164451), (141141, 148789), (141531, 148379)]