21512176

素因数分解:

$2^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1193}}^1$

素因数の和:1238

約数の個数: 60

約数和(自身を含む): 50635152

約数和(自身を除く): 29122976

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 184, 196, 322, 368, 392, 644, 784, 1127, 1193, 1288, 2254, 2386, 2576, 4508, 4772, 8351, 9016, 9544, 16702, 18032, 19088, 27439, 33404, 54878, 58457, 66808, 109756, 116914, 133616, 192073, 219512, 233828, 384146, 439024, 467656, 768292, 935312, 1344511, 1536584, 2689022, 3073168, 5378044, 10756088, 21512176]

約数ペア:

[(1, 21512176), (2, 10756088), (4, 5378044), (7, 3073168), (8, 2689022), (14, 1536584), (16, 1344511), (23, 935312), (28, 768292), (46, 467656), (49, 439024), (56, 384146), (92, 233828), (98, 219512), (112, 192073), (161, 133616), (184, 116914), (196, 109756), (322, 66808), (368, 58457), (392, 54878), (644, 33404), (784, 27439), (1127, 19088), (1193, 18032), (1288, 16702), (2254, 9544), (2386, 9016), (2576, 8351), (4508, 4772)]