28727279

素因数分解:

$7^3\times {\mathrm{61}}^1\times {\mathrm{1373}}^1$

素因数の和:1455

約数の個数: 16

約数和(自身を含む): 34075200

約数和(自身を除く): 5347921

約数列:

[1, 7, 49, 61, 343, 427, 1373, 2989, 9611, 20923, 67277, 83753, 470939, 586271, 4103897, 28727279]

約数ペア:

[(1, 28727279), (7, 4103897), (49, 586271), (61, 470939), (343, 83753), (427, 67277), (1373, 20923), (2989, 9611)]