21407104

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 45288000

約数和(自身を除く): 23880896

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 73, 79, 116, 128, 146, 158, 232, 292, 316, 464, 584, 632, 928, 1168, 1264, 1856, 2117, 2291, 2336, 2528, 3712, 4234, 4582, 4672, 5056, 5767, 8468, 9164, 9344, 10112, 11534, 16936, 18328, 23068, 33872, 36656, 46136, 67744, 73312, 92272, 135488, 146624, 167243, 184544, 270976, 293248, 334486, 369088, 668972, 738176, 1337944, 2675888, 5351776, 10703552, 21407104]

約数ペア:

[(1, 21407104), (2, 10703552), (4, 5351776), (8, 2675888), (16, 1337944), (29, 738176), (32, 668972), (58, 369088), (64, 334486), (73, 293248), (79, 270976), (116, 184544), (128, 167243), (146, 146624), (158, 135488), (232, 92272), (292, 73312), (316, 67744), (464, 46136), (584, 36656), (632, 33872), (928, 23068), (1168, 18328), (1264, 16936), (1856, 11534), (2117, 10112), (2291, 9344), (2336, 9164), (2528, 8468), (3712, 5767), (4234, 5056), (4582, 4672)]