20121520279

素因数分解:

$7^2\times {\mathrm{911}}^1\times {\mathrm{450761}}^1$

素因数の和:451686

約数の個数: 12

約数和(自身を含む): 23432411808

約数和(自身を除く): 3310891529

約数列:

[1, 7, 49, 911, 6377, 44639, 450761, 3155327, 22087289, 410643271, 2874502897, 20121520279]

約数ペア:

[(1, 20121520279), (7, 2874502897), (49, 410643271), (911, 22087289), (6377, 3155327), (44639, 450761)]