18538281

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{36137}}^1$

素因数の和:36165

約数の個数: 16

約数和(自身を含む): 28910400

約数和(自身を除く): 10372119

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 36137, 108411, 325233, 686603, 975699, 2059809, 6179427, 18538281]

約数ペア:

[(1, 18538281), (3, 6179427), (9, 2059809), (19, 975699), (27, 686603), (57, 325233), (171, 108411), (513, 36137)]