21210112

素因数分解:

$2^{10}\times 7^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1$

素因数の和:307

約数の個数: 88

約数和(自身を含む): 53058240

約数和(自身を除く): 31848128

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 256, 269, 308, 352, 448, 512, 538, 616, 704, 896, 1024, 1076, 1232, 1408, 1792, 1883, 2152, 2464, 2816, 2959, 3584, 3766, 4304, 4928, 5632, 5918, 7168, 7532, 8608, 9856, 11264, 11836, 15064, 17216, 19712, 20713, 23672, 30128, 34432, 39424, 41426, 47344, 60256, 68864, 78848, 82852, 94688, 120512, 137728, 165704, 189376, 241024, 275456, 331408, 378752, 482048, 662816, 757504, 964096, 1325632, 1515008, 1928192, 2651264, 3030016, 5302528, 10605056, 21210112]

約数ペア:

[(1, 21210112), (2, 10605056), (4, 5302528), (7, 3030016), (8, 2651264), (11, 1928192), (14, 1515008), (16, 1325632), (22, 964096), (28, 757504), (32, 662816), (44, 482048), (56, 378752), (64, 331408), (77, 275456), (88, 241024), (112, 189376), (128, 165704), (154, 137728), (176, 120512), (224, 94688), (256, 82852), (269, 78848), (308, 68864), (352, 60256), (448, 47344), (512, 41426), (538, 39424), (616, 34432), (704, 30128), (896, 23672), (1024, 20713), (1076, 19712), (1232, 17216), (1408, 15064), (1792, 11836), (1883, 11264), (2152, 9856), (2464, 8608), (2816, 7532), (2959, 7168), (3584, 5918), (3766, 5632), (4304, 4928)]