21380135

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{35933}}^1$

素因数の和:35962

約数の個数: 16

約数和(自身を含む): 31046976

約数和(自身を除く): 9666841

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 35933, 179665, 251531, 610861, 1257655, 3054305, 4276027, 21380135]

約数ペア:

[(1, 21380135), (5, 4276027), (7, 3054305), (17, 1257655), (35, 610861), (85, 251531), (119, 179665), (595, 35933)]