81647538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{15307}}^1$

素因数の和:15446

約数の個数: 32

約数和(自身を含む): 188104704

約数和(自身を除く): 106457166

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 127, 254, 381, 762, 889, 1778, 2667, 5334, 15307, 30614, 45921, 91842, 107149, 214298, 321447, 642894, 1943989, 3887978, 5831967, 11663934, 13607923, 27215846, 40823769, 81647538]

約数ペア:

[(1, 81647538), (2, 40823769), (3, 27215846), (6, 13607923), (7, 11663934), (14, 5831967), (21, 3887978), (42, 1943989), (127, 642894), (254, 321447), (381, 214298), (762, 107149), (889, 91842), (1778, 45921), (2667, 30614), (5334, 15307)]