21919546

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{14033}}^1$

素因数の和:14117

約数の個数: 16

約数和(自身を含む): 36376128

約数和(自身を除く): 14456582

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 14033, 28066, 154363, 308726, 996343, 1992686, 10959773, 21919546]

約数ペア:

[(1, 21919546), (2, 10959773), (11, 1992686), (22, 996343), (71, 308726), (142, 154363), (781, 28066), (1562, 14033)]