20512506561

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{2441}}^1\times {\mathrm{164771}}^1$

素因数の和:167232

約数の個数: 16

約数和(自身を含む): 28970872128

約数和(自身を除く): 8458365567

約数列:

[1, 3, 17, 51, 2441, 7323, 41497, 124491, 164771, 494313, 2801107, 8403321, 402206011, 1206618033, 6837502187, 20512506561]

約数ペア:

[(1, 20512506561), (3, 6837502187), (17, 1206618033), (51, 402206011), (2441, 8403321), (7323, 2801107), (41497, 494313), (124491, 164771)]