21895328

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 54302976

約数和(自身を除く): 32407648

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 73, 91, 103, 104, 112, 146, 182, 206, 208, 224, 292, 364, 412, 416, 511, 584, 721, 728, 824, 949, 1022, 1168, 1339, 1442, 1456, 1648, 1898, 2044, 2336, 2678, 2884, 2912, 3296, 3796, 4088, 5356, 5768, 6643, 7519, 7592, 8176, 9373, 10712, 11536, 13286, 15038, 15184, 16352, 18746, 21424, 23072, 26572, 30076, 30368, 37492, 42848, 52633, 53144, 60152, 74984, 97747, 105266, 106288, 120304, 149968, 195494, 210532, 212576, 240608, 299936, 390988, 421064, 684229, 781976, 842128, 1368458, 1563952, 1684256, 2736916, 3127904, 5473832, 10947664, 21895328]

約数ペア:

[(1, 21895328), (2, 10947664), (4, 5473832), (7, 3127904), (8, 2736916), (13, 1684256), (14, 1563952), (16, 1368458), (26, 842128), (28, 781976), (32, 684229), (52, 421064), (56, 390988), (73, 299936), (91, 240608), (103, 212576), (104, 210532), (112, 195494), (146, 149968), (182, 120304), (206, 106288), (208, 105266), (224, 97747), (292, 74984), (364, 60152), (412, 53144), (416, 52633), (511, 42848), (584, 37492), (721, 30368), (728, 30076), (824, 26572), (949, 23072), (1022, 21424), (1168, 18746), (1339, 16352), (1442, 15184), (1456, 15038), (1648, 13286), (1898, 11536), (2044, 10712), (2336, 9373), (2678, 8176), (2884, 7592), (2912, 7519), (3296, 6643), (3796, 5768), (4088, 5356)]