21164416

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 54835200

約数和(自身を除く): 33670784

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 46, 52, 56, 64, 79, 91, 92, 104, 112, 128, 158, 161, 182, 184, 208, 224, 299, 316, 322, 364, 368, 416, 448, 553, 598, 632, 644, 728, 736, 832, 896, 1027, 1106, 1196, 1264, 1288, 1456, 1472, 1664, 1817, 2054, 2093, 2212, 2392, 2528, 2576, 2912, 2944, 3634, 4108, 4186, 4424, 4784, 5056, 5152, 5824, 7189, 7268, 8216, 8372, 8848, 9568, 10112, 10304, 11648, 12719, 14378, 14536, 16432, 16744, 17696, 19136, 20608, 23621, 25438, 28756, 29072, 32864, 33488, 35392, 38272, 47242, 50876, 57512, 58144, 65728, 66976, 70784, 94484, 101752, 115024, 116288, 131456, 133952, 165347, 188968, 203504, 230048, 232576, 267904, 330694, 377936, 407008, 460096, 661388, 755872, 814016, 920192, 1322776, 1511744, 1628032, 2645552, 3023488, 5291104, 10582208, 21164416]

約数ペア:

[(1, 21164416), (2, 10582208), (4, 5291104), (7, 3023488), (8, 2645552), (13, 1628032), (14, 1511744), (16, 1322776), (23, 920192), (26, 814016), (28, 755872), (32, 661388), (46, 460096), (52, 407008), (56, 377936), (64, 330694), (79, 267904), (91, 232576), (92, 230048), (104, 203504), (112, 188968), (128, 165347), (158, 133952), (161, 131456), (182, 116288), (184, 115024), (208, 101752), (224, 94484), (299, 70784), (316, 66976), (322, 65728), (364, 58144), (368, 57512), (416, 50876), (448, 47242), (553, 38272), (598, 35392), (632, 33488), (644, 32864), (728, 29072), (736, 28756), (832, 25438), (896, 23621), (1027, 20608), (1106, 19136), (1196, 17696), (1264, 16744), (1288, 16432), (1456, 14536), (1472, 14378), (1664, 12719), (1817, 11648), (2054, 10304), (2093, 10112), (2212, 9568), (2392, 8848), (2528, 8372), (2576, 8216), (2912, 7268), (2944, 7189), (3634, 5824), (4108, 5152), (4186, 5056), (4424, 4784)]