257006787

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{859}}^1$

素因数の和:1091

約数の個数: 32

約数和(自身を含む): 375648000

約数和(自身を除く): 118641213

約数列:

[1, 3, 19, 29, 57, 87, 181, 543, 551, 859, 1653, 2577, 3439, 5249, 10317, 15747, 16321, 24911, 48963, 74733, 99731, 155479, 299193, 466437, 473309, 1419927, 2954101, 4508891, 8862303, 13526673, 85668929, 257006787]

約数ペア:

[(1, 257006787), (3, 85668929), (19, 13526673), (29, 8862303), (57, 4508891), (87, 2954101), (181, 1419927), (543, 473309), (551, 466437), (859, 299193), (1653, 155479), (2577, 99731), (3439, 74733), (5249, 48963), (10317, 24911), (15747, 16321)]