12420891

素因数分解:

$3^3\times 7^1\times {\mathrm{65719}}^1$

素因数の和:65735

約数の個数: 16

約数和(自身を含む): 21030400

約数和(自身を除く): 8609509

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 65719, 197157, 460033, 591471, 1380099, 1774413, 4140297, 12420891]

約数ペア:

[(1, 12420891), (3, 4140297), (7, 1774413), (9, 1380099), (21, 591471), (27, 460033), (63, 197157), (189, 65719)]