19980423

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3037}}^1$

素因数の和:3103

約数の個数: 24

約数和(自身を含む): 31279248

約数和(自身を除く): 11298825

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 3037, 6579, 9111, 27333, 51629, 130591, 154887, 391773, 464661, 1175319, 2220047, 6660141, 19980423]

約数ペア:

[(1, 19980423), (3, 6660141), (9, 2220047), (17, 1175319), (43, 464661), (51, 391773), (129, 154887), (153, 130591), (387, 51629), (731, 27333), (2193, 9111), (3037, 6579)]