21084943

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:618

約数の個数: 16

約数和(自身を含む): 24003360

約数和(自身を除く): 2918417

約数列:

[1, 11, 29, 157, 319, 421, 1727, 4553, 4631, 12209, 50083, 66097, 134299, 727067, 1916813, 21084943]

約数ペア:

[(1, 21084943), (11, 1916813), (29, 727067), (157, 134299), (319, 66097), (421, 50083), (1727, 12209), (4553, 4631)]