21189888

素因数分解:

$2^8\times 3^2\times {\mathrm{17}}^1\times {\mathrm{541}}^1$

素因数の和:580

約数の個数: 108

約数和(自身を含む): 64809108

約数和(自身を除く): 43619220

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 64, 68, 72, 96, 102, 128, 136, 144, 153, 192, 204, 256, 272, 288, 306, 384, 408, 541, 544, 576, 612, 768, 816, 1082, 1088, 1152, 1224, 1623, 1632, 2164, 2176, 2304, 2448, 3246, 3264, 4328, 4352, 4869, 4896, 6492, 6528, 8656, 9197, 9738, 9792, 12984, 13056, 17312, 18394, 19476, 19584, 25968, 27591, 34624, 36788, 38952, 39168, 51936, 55182, 69248, 73576, 77904, 82773, 103872, 110364, 138496, 147152, 155808, 165546, 207744, 220728, 294304, 311616, 331092, 415488, 441456, 588608, 623232, 662184, 882912, 1177216, 1246464, 1324368, 1765824, 2354432, 2648736, 3531648, 5297472, 7063296, 10594944, 21189888]

約数ペア:

[(1, 21189888), (2, 10594944), (3, 7063296), (4, 5297472), (6, 3531648), (8, 2648736), (9, 2354432), (12, 1765824), (16, 1324368), (17, 1246464), (18, 1177216), (24, 882912), (32, 662184), (34, 623232), (36, 588608), (48, 441456), (51, 415488), (64, 331092), (68, 311616), (72, 294304), (96, 220728), (102, 207744), (128, 165546), (136, 155808), (144, 147152), (153, 138496), (192, 110364), (204, 103872), (256, 82773), (272, 77904), (288, 73576), (306, 69248), (384, 55182), (408, 51936), (541, 39168), (544, 38952), (576, 36788), (612, 34624), (768, 27591), (816, 25968), (1082, 19584), (1088, 19476), (1152, 18394), (1224, 17312), (1623, 13056), (1632, 12984), (2164, 9792), (2176, 9738), (2304, 9197), (2448, 8656), (3246, 6528), (3264, 6492), (4328, 4896), (4352, 4869)]