1999887

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 2808960

約数和(自身を除く): 809073

約数列:

[1, 3, 37, 43, 111, 129, 419, 1257, 1591, 4773, 15503, 18017, 46509, 54051, 666629, 1999887]

約数ペア:

[(1, 1999887), (3, 666629), (37, 54051), (43, 46509), (111, 18017), (129, 15503), (419, 4773), (1257, 1591)]