208173699

素因数分解:

$3^3\times {\mathrm{397}}^1\times {\mathrm{19421}}^1$

素因数の和:19827

約数の個数: 16

約数和(自身を含む): 309198240

約数和(自身を除く): 101024541

約数列:

[1, 3, 9, 27, 397, 1191, 3573, 10719, 19421, 58263, 174789, 524367, 7710137, 23130411, 69391233, 208173699]

約数ペア:

[(1, 208173699), (3, 69391233), (9, 23130411), (27, 7710137), (397, 524367), (1191, 174789), (3573, 58263), (10719, 19421)]