642744297

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{177211}}^1$

素因数の和:177261

約数の個数: 24

約数和(自身を含む): 1032082688

約数和(自身を除く): 389338391

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 177211, 531633, 1594899, 2303743, 5493541, 6911229, 16480623, 20733687, 49441869, 71416033, 214248099, 642744297]

約数ペア:

[(1, 642744297), (3, 214248099), (9, 71416033), (13, 49441869), (31, 20733687), (39, 16480623), (93, 6911229), (117, 5493541), (279, 2303743), (403, 1594899), (1209, 531633), (3627, 177211)]