251585121

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 354476160

約数和(自身を除く): 102891039

約数列:

[1, 3, 29, 87, 113, 157, 163, 339, 471, 489, 3277, 4553, 4727, 9831, 13659, 14181, 17741, 18419, 25591, 53223, 55257, 76773, 514489, 534151, 742139, 1543467, 1602453, 2226417, 2891783, 8675349, 83861707, 251585121]

約数ペア:

[(1, 251585121), (3, 83861707), (29, 8675349), (87, 2891783), (113, 2226417), (157, 1602453), (163, 1543467), (339, 742139), (471, 534151), (489, 514489), (3277, 76773), (4553, 55257), (4727, 53223), (9831, 25591), (13659, 18419), (14181, 17741)]