217665279

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{2939}}^1$

素因数の和:3172

約数の個数: 32

約数和(自身を含む): 349036800

約数和(自身を除く): 131371521

約数列:

[1, 3, 9, 13, 27, 39, 117, 211, 351, 633, 1899, 2743, 2939, 5697, 8229, 8817, 24687, 26451, 38207, 74061, 79353, 114621, 343863, 620129, 1031589, 1860387, 5581161, 8061677, 16743483, 24185031, 72555093, 217665279]

約数ペア:

[(1, 217665279), (3, 72555093), (9, 24185031), (13, 16743483), (27, 8061677), (39, 5581161), (117, 1860387), (211, 1031589), (351, 620129), (633, 343863), (1899, 114621), (2743, 79353), (2939, 74061), (5697, 38207), (8229, 26451), (8817, 24687)]