21061376

素因数分解:

$2^8\times 7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 108

約数和(自身を含む): 51729552

約数和(自身を除く): 30668176

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 49, 56, 64, 73, 92, 98, 112, 128, 146, 161, 184, 196, 224, 256, 292, 322, 368, 392, 448, 511, 584, 644, 736, 784, 896, 1022, 1127, 1168, 1288, 1472, 1568, 1679, 1792, 2044, 2254, 2336, 2576, 2944, 3136, 3358, 3577, 4088, 4508, 4672, 5152, 5888, 6272, 6716, 7154, 8176, 9016, 9344, 10304, 11753, 12544, 13432, 14308, 16352, 18032, 18688, 20608, 23506, 26864, 28616, 32704, 36064, 41216, 47012, 53728, 57232, 65408, 72128, 82271, 94024, 107456, 114464, 130816, 144256, 164542, 188048, 214912, 228928, 288512, 329084, 376096, 429824, 457856, 658168, 752192, 915712, 1316336, 1504384, 2632672, 3008768, 5265344, 10530688, 21061376]

約数ペア:

[(1, 21061376), (2, 10530688), (4, 5265344), (7, 3008768), (8, 2632672), (14, 1504384), (16, 1316336), (23, 915712), (28, 752192), (32, 658168), (46, 457856), (49, 429824), (56, 376096), (64, 329084), (73, 288512), (92, 228928), (98, 214912), (112, 188048), (128, 164542), (146, 144256), (161, 130816), (184, 114464), (196, 107456), (224, 94024), (256, 82271), (292, 72128), (322, 65408), (368, 57232), (392, 53728), (448, 47012), (511, 41216), (584, 36064), (644, 32704), (736, 28616), (784, 26864), (896, 23506), (1022, 20608), (1127, 18688), (1168, 18032), (1288, 16352), (1472, 14308), (1568, 13432), (1679, 12544), (1792, 11753), (2044, 10304), (2254, 9344), (2336, 9016), (2576, 8176), (2944, 7154), (3136, 6716), (3358, 6272), (3577, 5888), (4088, 5152), (4508, 4672)]