137172021

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{21701}}^1$

素因数の和:21761

約数の個数: 24

約数和(自身を含む): 217714464

約数和(自身を除く): 80542443

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 21701, 65103, 151907, 455721, 933143, 1063349, 2799429, 3190047, 6532001, 19596003, 45724007, 137172021]

約数ペア:

[(1, 137172021), (3, 45724007), (7, 19596003), (21, 6532001), (43, 3190047), (49, 2799429), (129, 1063349), (147, 933143), (301, 455721), (903, 151907), (2107, 65103), (6321, 21701)]