391908538

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{220421}}^1$

素因数の和:220557

約数の個数: 16

約数和(自身を含む): 677136384

約数和(自身を除く): 285227846

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 220421, 440842, 1542947, 3085894, 27993467, 55986934, 195954269, 391908538]

約数ペア:

[(1, 391908538), (2, 195954269), (7, 55986934), (14, 27993467), (127, 3085894), (254, 1542947), (889, 440842), (1778, 220421)]