21399542

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{4073}}^1$

素因数の和:4183

約数の個数: 16

約数和(自身を含む): 33439392

約数和(自身を除く): 12039850

約数列:

[1, 2, 37, 71, 74, 142, 2627, 4073, 5254, 8146, 150701, 289183, 301402, 578366, 10699771, 21399542]

約数ペア:

[(1, 21399542), (2, 10699771), (37, 578366), (71, 301402), (74, 289183), (142, 150701), (2627, 8146), (4073, 5254)]