21114368

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:215

約数の個数: 80

約数和(自身を含む): 48318336

約数和(自身を除く): 27203968

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 128, 163, 176, 184, 253, 256, 326, 352, 368, 506, 512, 652, 704, 736, 1012, 1304, 1408, 1472, 1793, 2024, 2608, 2816, 2944, 3586, 3749, 4048, 5216, 5632, 5888, 7172, 7498, 8096, 10432, 11776, 14344, 14996, 16192, 20864, 28688, 29992, 32384, 41239, 41728, 57376, 59984, 64768, 82478, 83456, 114752, 119968, 129536, 164956, 229504, 239936, 329912, 459008, 479872, 659824, 918016, 959744, 1319648, 1919488, 2639296, 5278592, 10557184, 21114368]

約数ペア:

[(1, 21114368), (2, 10557184), (4, 5278592), (8, 2639296), (11, 1919488), (16, 1319648), (22, 959744), (23, 918016), (32, 659824), (44, 479872), (46, 459008), (64, 329912), (88, 239936), (92, 229504), (128, 164956), (163, 129536), (176, 119968), (184, 114752), (253, 83456), (256, 82478), (326, 64768), (352, 59984), (368, 57376), (506, 41728), (512, 41239), (652, 32384), (704, 29992), (736, 28688), (1012, 20864), (1304, 16192), (1408, 14996), (1472, 14344), (1793, 11776), (2024, 10432), (2608, 8096), (2816, 7498), (2944, 7172), (3586, 5888), (3749, 5632), (4048, 5216)]