19401431

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:650

約数の個数: 16

約数和(自身を含む): 22956864

約数和(自身を除く): 3555433

約数列:

[1, 7, 37, 173, 259, 433, 1211, 3031, 6401, 16021, 44807, 74909, 112147, 524363, 2771633, 19401431]

約数ペア:

[(1, 19401431), (7, 2771633), (37, 524363), (173, 112147), (259, 74909), (433, 44807), (1211, 16021), (3031, 6401)]