18964953

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4493}}^1$

素因数の和:4573

約数の個数: 24

約数和(自身を含む): 31781568

約数和(自身を除く): 12816615

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 4493, 13479, 31451, 40437, 94353, 283059, 301031, 903093, 2107217, 2709279, 6321651, 18964953]

約数ペア:

[(1, 18964953), (3, 6321651), (7, 2709279), (9, 2107217), (21, 903093), (63, 301031), (67, 283059), (201, 94353), (469, 40437), (603, 31451), (1407, 13479), (4221, 4493)]