18539493

素因数分解:

$3^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 29568000

約数和(自身を除く): 11028507

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 343, 419, 903, 1029, 1257, 2107, 2933, 6321, 8799, 14749, 18017, 20531, 44247, 54051, 61593, 126119, 143717, 378357, 431151, 882833, 2648499, 6179831, 18539493]

約数ペア:

[(1, 18539493), (3, 6179831), (7, 2648499), (21, 882833), (43, 431151), (49, 378357), (129, 143717), (147, 126119), (301, 61593), (343, 54051), (419, 44247), (903, 20531), (1029, 18017), (1257, 14749), (2107, 8799), (2933, 6321)]