18937845

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9787}}^1$

素因数の和:9841

約数の個数: 24

約数和(自身を含む): 33592416

約数和(自身を除く): 14654571

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9787, 29361, 48935, 88083, 146805, 420841, 440415, 1262523, 2104205, 3787569, 6312615, 18937845]

約数ペア:

[(1, 18937845), (3, 6312615), (5, 3787569), (9, 2104205), (15, 1262523), (43, 440415), (45, 420841), (129, 146805), (215, 88083), (387, 48935), (645, 29361), (1935, 9787)]