21230691

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5309}}^1$

素因数の和:5386

約数の個数: 16

約数和(自身を含む): 29905920

約数和(自身を除く): 8675229

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5309, 15927, 164579, 228287, 493737, 684861, 7076897, 21230691]

約数ペア:

[(1, 21230691), (3, 7076897), (31, 684861), (43, 493737), (93, 228287), (129, 164579), (1333, 15927), (3999, 5309)]