81897564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{974971}}^1$

素因数の和:974985

約数の個数: 24

約数和(自身を含む): 218393728

約数和(自身を除く): 136496164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 974971, 1949942, 2924913, 3899884, 5849826, 6824797, 11699652, 13649594, 20474391, 27299188, 40948782, 81897564]

約数ペア:

[(1, 81897564), (2, 40948782), (3, 27299188), (4, 20474391), (6, 13649594), (7, 11699652), (12, 6824797), (14, 5849826), (21, 3899884), (28, 2924913), (42, 1949942), (84, 974971)]