255242589

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{521}}^1\times {\mathrm{569}}^1$

素因数の和:1141

約数の個数: 32

約数和(自身を含む): 399893760

約数和(自身を除く): 144651171

約数列:

[1, 3, 7, 21, 41, 123, 287, 521, 569, 861, 1563, 1707, 3647, 3983, 10941, 11949, 21361, 23329, 64083, 69987, 149527, 163303, 296449, 448581, 489909, 889347, 2075143, 6225429, 12154409, 36463227, 85080863, 255242589]

約数ペア:

[(1, 255242589), (3, 85080863), (7, 36463227), (21, 12154409), (41, 6225429), (123, 2075143), (287, 889347), (521, 489909), (569, 448581), (861, 296449), (1563, 163303), (1707, 149527), (3647, 69987), (3983, 64083), (10941, 23329), (11949, 21361)]