20120709

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23369}}^1$

素因数の和:23420

約数の個数: 16

約数和(自身を含む): 31409280

約数和(自身を除く): 11288571

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23369, 70107, 163583, 490749, 958129, 2874387, 6706903, 20120709]

約数ペア:

[(1, 20120709), (3, 6706903), (7, 2874387), (21, 958129), (41, 490749), (123, 163583), (287, 70107), (861, 23369)]