278328141

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{339839}}^1$

素因数の和:339865

約数の個数: 24

約数和(自身を含む): 494807040

約数和(自身を除く): 216478899

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 339839, 1019517, 2378873, 3058551, 4417907, 7136619, 13253721, 21409857, 30925349, 39761163, 92776047, 278328141]

約数ペア:

[(1, 278328141), (3, 92776047), (7, 39761163), (9, 30925349), (13, 21409857), (21, 13253721), (39, 7136619), (63, 4417907), (91, 3058551), (117, 2378873), (273, 1019517), (819, 339839)]