81389042

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{252761}}^1$

素因数の和:252793

約数の個数: 16

約数和(自身を含む): 145590912

約数和(自身を除く): 64201870

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 252761, 505522, 1769327, 3538654, 5813503, 11627006, 40694521, 81389042]

約数ペア:

[(1, 81389042), (2, 40694521), (7, 11627006), (14, 5813503), (23, 3538654), (46, 1769327), (161, 505522), (322, 252761)]