18166113

素因数分解:

$3^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 60

約数和(自身を含む): 33105600

約数和(自身を除く): 14939487

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 81, 147, 161, 189, 199, 207, 441, 483, 567, 597, 621, 1127, 1323, 1393, 1449, 1791, 1863, 3381, 3969, 4179, 4347, 4577, 5373, 9751, 10143, 12537, 13041, 13731, 16119, 29253, 30429, 32039, 37611, 41193, 87759, 91287, 96117, 112833, 123579, 224273, 263277, 288351, 370737, 672819, 789831, 865053, 2018457, 2595159, 6055371, 18166113]

約数ペア:

[(1, 18166113), (3, 6055371), (7, 2595159), (9, 2018457), (21, 865053), (23, 789831), (27, 672819), (49, 370737), (63, 288351), (69, 263277), (81, 224273), (147, 123579), (161, 112833), (189, 96117), (199, 91287), (207, 87759), (441, 41193), (483, 37611), (567, 32039), (597, 30429), (621, 29253), (1127, 16119), (1323, 13731), (1393, 13041), (1449, 12537), (1791, 10143), (1863, 9751), (3381, 5373), (3969, 4577), (4179, 4347)]