21914079

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 11263521

約数列:

[1, 3, 11, 33, 47, 71, 141, 199, 213, 517, 597, 781, 1551, 2189, 2343, 3337, 6567, 9353, 10011, 14129, 28059, 36707, 42387, 102883, 110121, 155419, 308649, 466257, 664063, 1992189, 7304693, 21914079]

約数ペア:

[(1, 21914079), (3, 7304693), (11, 1992189), (33, 664063), (47, 466257), (71, 308649), (141, 155419), (199, 110121), (213, 102883), (517, 42387), (597, 36707), (781, 28059), (1551, 14129), (2189, 10011), (2343, 9353), (3337, 6567)]