81161738

素因数分解:

$2^1\times 7^2\times {\mathrm{389}}^1\times {\mathrm{2129}}^1$

素因数の和:2534

約数の個数: 24

約数和(自身を含む): 142049700

約数和(自身を除く): 60887962

約数列:

[1, 2, 7, 14, 49, 98, 389, 778, 2129, 2723, 4258, 5446, 14903, 19061, 29806, 38122, 104321, 208642, 828181, 1656362, 5797267, 11594534, 40580869, 81161738]

約数ペア:

[(1, 81161738), (2, 40580869), (7, 11594534), (14, 5797267), (49, 1656362), (98, 828181), (389, 208642), (778, 104321), (2129, 38122), (2723, 29806), (4258, 19061), (5446, 14903)]