81221582

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{72649}}^1$

素因数の和:72707

約数の個数: 16

約数和(自身を含む): 134257200

約数和(自身を除く): 53035618

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 72649, 145298, 944437, 1888874, 3123907, 6247814, 40610791, 81221582]

約数ペア:

[(1, 81221582), (2, 40610791), (13, 6247814), (26, 3123907), (43, 1888874), (86, 944437), (559, 145298), (1118, 72649)]