209957277

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{881}}^1$

素因数の和:1053

約数の個数: 32

約数和(自身を含む): 305665920

約数和(自身を除く): 95708643

約数列:

[1, 3, 19, 37, 57, 111, 113, 339, 703, 881, 2109, 2147, 2643, 4181, 6441, 12543, 16739, 32597, 50217, 79439, 97791, 99553, 238317, 298659, 619343, 1858029, 1891507, 3683461, 5674521, 11050383, 69985759, 209957277]

約数ペア:

[(1, 209957277), (3, 69985759), (19, 11050383), (37, 5674521), (57, 3683461), (111, 1891507), (113, 1858029), (339, 619343), (703, 298659), (881, 238317), (2109, 99553), (2147, 97791), (2643, 79439), (4181, 50217), (6441, 32597), (12543, 16739)]