19984678

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{13859}}^1$

素因数の和:13971

約数の個数: 16

約数和(自身を含む): 34594560

約数和(自身を除く): 14609882

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 13859, 27718, 97013, 194026, 1427477, 2854954, 9992339, 19984678]

約数ペア:

[(1, 19984678), (2, 9992339), (7, 2854954), (14, 1427477), (103, 194026), (206, 97013), (721, 27718), (1442, 13859)]