21991424

素因数分解:

$2^{12}\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1$

素因数の和:103

約数の個数: 104

約数和(自身を含む): 55043520

約数和(自身を除く): 33052096

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 59, 64, 91, 104, 112, 118, 128, 182, 208, 224, 236, 256, 364, 413, 416, 448, 472, 512, 728, 767, 826, 832, 896, 944, 1024, 1456, 1534, 1652, 1664, 1792, 1888, 2048, 2912, 3068, 3304, 3328, 3584, 3776, 4096, 5369, 5824, 6136, 6608, 6656, 7168, 7552, 10738, 11648, 12272, 13216, 13312, 14336, 15104, 21476, 23296, 24544, 26432, 26624, 28672, 30208, 42952, 46592, 49088, 52864, 53248, 60416, 85904, 93184, 98176, 105728, 120832, 171808, 186368, 196352, 211456, 241664, 343616, 372736, 392704, 422912, 687232, 785408, 845824, 1374464, 1570816, 1691648, 2748928, 3141632, 5497856, 10995712, 21991424]

約数ペア:

[(1, 21991424), (2, 10995712), (4, 5497856), (7, 3141632), (8, 2748928), (13, 1691648), (14, 1570816), (16, 1374464), (26, 845824), (28, 785408), (32, 687232), (52, 422912), (56, 392704), (59, 372736), (64, 343616), (91, 241664), (104, 211456), (112, 196352), (118, 186368), (128, 171808), (182, 120832), (208, 105728), (224, 98176), (236, 93184), (256, 85904), (364, 60416), (413, 53248), (416, 52864), (448, 49088), (472, 46592), (512, 42952), (728, 30208), (767, 28672), (826, 26624), (832, 26432), (896, 24544), (944, 23296), (1024, 21476), (1456, 15104), (1534, 14336), (1652, 13312), (1664, 13216), (1792, 12272), (1888, 11648), (2048, 10738), (2912, 7552), (3068, 7168), (3304, 6656), (3328, 6608), (3584, 6136), (3776, 5824), (4096, 5369)]