21636009

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1511}}^1$

素因数の和:1597

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 11228823

約数列:

[1, 3, 9, 37, 43, 111, 129, 333, 387, 1511, 1591, 4533, 4773, 13599, 14319, 55907, 64973, 167721, 194919, 503163, 584757, 2404001, 7212003, 21636009]

約数ペア:

[(1, 21636009), (3, 7212003), (9, 2404001), (37, 584757), (43, 503163), (111, 194919), (129, 167721), (333, 64973), (387, 55907), (1511, 14319), (1591, 13599), (4533, 4773)]