21188299

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 24145920

約数和(自身を除く): 2957621

約数列:

[1, 11, 29, 127, 319, 523, 1397, 3683, 5753, 15167, 40513, 66421, 166837, 730631, 1926209, 21188299]

約数ペア:

[(1, 21188299), (11, 1926209), (29, 730631), (127, 166837), (319, 66421), (523, 40513), (1397, 15167), (3683, 5753)]