206521749

素因数分解:

$3^2\times 7^1\times {\mathrm{1019}}^1\times {\mathrm{3217}}^1$

素因数の和:4249

約数の個数: 24

約数和(自身を含む): 341365440

約数和(自身を除く): 134843691

約数列:

[1, 3, 7, 9, 21, 63, 1019, 3057, 3217, 7133, 9171, 9651, 21399, 22519, 28953, 64197, 67557, 202671, 3278123, 9834369, 22946861, 29503107, 68840583, 206521749]

約数ペア:

[(1, 206521749), (3, 68840583), (7, 29503107), (9, 22946861), (21, 9834369), (63, 3278123), (1019, 202671), (3057, 67557), (3217, 64197), (7133, 28953), (9171, 22519), (9651, 21399)]