12987621

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 21403200

約数和(自身を除く): 8415579

約数列:

[1, 3, 9, 19, 27, 29, 57, 81, 87, 97, 171, 243, 261, 291, 513, 551, 783, 873, 1539, 1653, 1843, 2349, 2619, 2813, 4617, 4959, 5529, 7047, 7857, 8439, 14877, 16587, 23571, 25317, 44631, 49761, 53447, 75951, 133893, 149283, 160341, 227853, 447849, 481023, 683559, 1443069, 4329207, 12987621]

約数ペア:

[(1, 12987621), (3, 4329207), (9, 1443069), (19, 683559), (27, 481023), (29, 447849), (57, 227853), (81, 160341), (87, 149283), (97, 133893), (171, 75951), (243, 53447), (261, 49761), (291, 44631), (513, 25317), (551, 23571), (783, 16587), (873, 14877), (1539, 8439), (1653, 7857), (1843, 7047), (2349, 5529), (2619, 4959), (2813, 4617)]