1977521

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 2515968

約数和(自身を除く): 538447

約数列:

[1, 7, 13, 31, 91, 217, 403, 701, 2821, 4907, 9113, 21731, 63791, 152117, 282503, 1977521]

約数ペア:

[(1, 1977521), (7, 282503), (13, 152117), (31, 63791), (91, 21731), (217, 9113), (403, 4907), (701, 2821)]