131580337

素因数分解:

$7^2\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 165225216

約数和(自身を除く): 33644879

約数列:

[1, 7, 29, 31, 49, 103, 203, 217, 721, 841, 899, 1421, 1519, 2987, 3193, 5047, 5887, 6293, 20909, 22351, 26071, 41209, 44051, 86623, 92597, 146363, 156457, 182497, 606361, 648179, 1277479, 2685313, 4244527, 4537253, 18797191, 131580337]

約数ペア:

[(1, 131580337), (7, 18797191), (29, 4537253), (31, 4244527), (49, 2685313), (103, 1277479), (203, 648179), (217, 606361), (721, 182497), (841, 156457), (899, 146363), (1421, 92597), (1519, 86623), (2987, 44051), (3193, 41209), (5047, 26071), (5887, 22351), (6293, 20909)]