20786227

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:160

約数の個数: 32

約数和(自身を含む): 27546624

約数和(自身を除く): 6760397

約数列:

[1, 7, 11, 23, 77, 97, 121, 161, 253, 679, 847, 1067, 1331, 1771, 2231, 2783, 7469, 9317, 11737, 15617, 19481, 24541, 30613, 82159, 129107, 171787, 214291, 269951, 903749, 1889657, 2969461, 20786227]

約数ペア:

[(1, 20786227), (7, 2969461), (11, 1889657), (23, 903749), (77, 269951), (97, 214291), (121, 171787), (161, 129107), (253, 82159), (679, 30613), (847, 24541), (1067, 19481), (1331, 15617), (1771, 11737), (2231, 9317), (2783, 7469)]