21328153

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12043}}^1$

素因数の和:12084

約数の個数: 16

約数和(自身を含む): 27749376

約数和(自身を除く): 6421223

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 12043, 84301, 132473, 276989, 927311, 1938923, 3046879, 21328153]

約数ペア:

[(1, 21328153), (7, 3046879), (11, 1938923), (23, 927311), (77, 276989), (161, 132473), (253, 84301), (1771, 12043)]