81007578

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{121633}}^1$

素因数の和:121678

約数の個数: 24

約数和(自身を含む): 180261588

約数和(自身を除く): 99254010

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 121633, 243266, 364899, 729798, 1094697, 2189394, 4500421, 9000842, 13501263, 27002526, 40503789, 81007578]

約数ペア:

[(1, 81007578), (2, 40503789), (3, 27002526), (6, 13501263), (9, 9000842), (18, 4500421), (37, 2189394), (74, 1094697), (111, 729798), (222, 364899), (333, 243266), (666, 121633)]