21382144

素因数分解:

$2^{10}\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 88

約数和(自身を含む): 51748160

約数和(自身を除く): 30366016

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 157, 224, 256, 266, 304, 314, 448, 512, 532, 608, 628, 896, 1024, 1064, 1099, 1216, 1256, 1792, 2128, 2198, 2432, 2512, 2983, 3584, 4256, 4396, 4864, 5024, 5966, 7168, 8512, 8792, 9728, 10048, 11932, 17024, 17584, 19456, 20096, 20881, 23864, 34048, 35168, 40192, 41762, 47728, 68096, 70336, 80384, 83524, 95456, 136192, 140672, 160768, 167048, 190912, 281344, 334096, 381824, 562688, 668192, 763648, 1125376, 1336384, 1527296, 2672768, 3054592, 5345536, 10691072, 21382144]

約数ペア:

[(1, 21382144), (2, 10691072), (4, 5345536), (7, 3054592), (8, 2672768), (14, 1527296), (16, 1336384), (19, 1125376), (28, 763648), (32, 668192), (38, 562688), (56, 381824), (64, 334096), (76, 281344), (112, 190912), (128, 167048), (133, 160768), (152, 140672), (157, 136192), (224, 95456), (256, 83524), (266, 80384), (304, 70336), (314, 68096), (448, 47728), (512, 41762), (532, 40192), (608, 35168), (628, 34048), (896, 23864), (1024, 20881), (1064, 20096), (1099, 19456), (1216, 17584), (1256, 17024), (1792, 11932), (2128, 10048), (2198, 9728), (2432, 8792), (2512, 8512), (2983, 7168), (3584, 5966), (4256, 5024), (4396, 4864)]