21279648

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1$

素因数の和:119

約数の個数: 144

約数和(自身を含む): 64985760

約数和(自身を除く): 43706112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 32, 34, 39, 48, 51, 52, 59, 68, 78, 96, 102, 104, 118, 136, 156, 177, 204, 208, 221, 236, 272, 289, 312, 354, 408, 416, 442, 472, 544, 578, 624, 663, 708, 767, 816, 867, 884, 944, 1003, 1156, 1248, 1326, 1416, 1534, 1632, 1734, 1768, 1888, 2006, 2301, 2312, 2652, 2832, 3009, 3068, 3468, 3536, 3757, 4012, 4602, 4624, 5304, 5664, 6018, 6136, 6936, 7072, 7514, 8024, 9204, 9248, 10608, 11271, 12036, 12272, 13039, 13872, 15028, 16048, 17051, 18408, 21216, 22542, 24072, 24544, 26078, 27744, 30056, 32096, 34102, 36816, 39117, 45084, 48144, 51153, 52156, 60112, 68204, 73632, 78234, 90168, 96288, 102306, 104312, 120224, 136408, 156468, 180336, 204612, 208624, 221663, 272816, 312936, 360672, 409224, 417248, 443326, 545632, 625872, 664989, 818448, 886652, 1251744, 1329978, 1636896, 1773304, 2659956, 3546608, 5319912, 7093216, 10639824, 21279648]

約数ペア:

[(1, 21279648), (2, 10639824), (3, 7093216), (4, 5319912), (6, 3546608), (8, 2659956), (12, 1773304), (13, 1636896), (16, 1329978), (17, 1251744), (24, 886652), (26, 818448), (32, 664989), (34, 625872), (39, 545632), (48, 443326), (51, 417248), (52, 409224), (59, 360672), (68, 312936), (78, 272816), (96, 221663), (102, 208624), (104, 204612), (118, 180336), (136, 156468), (156, 136408), (177, 120224), (204, 104312), (208, 102306), (221, 96288), (236, 90168), (272, 78234), (289, 73632), (312, 68204), (354, 60112), (408, 52156), (416, 51153), (442, 48144), (472, 45084), (544, 39117), (578, 36816), (624, 34102), (663, 32096), (708, 30056), (767, 27744), (816, 26078), (867, 24544), (884, 24072), (944, 22542), (1003, 21216), (1156, 18408), (1248, 17051), (1326, 16048), (1416, 15028), (1534, 13872), (1632, 13039), (1734, 12272), (1768, 12036), (1888, 11271), (2006, 10608), (2301, 9248), (2312, 9204), (2652, 8024), (2832, 7514), (3009, 7072), (3068, 6936), (3468, 6136), (3536, 6018), (3757, 5664), (4012, 5304), (4602, 4624)]