20249073

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13313}}^1$

素因数の和:13345

約数の個数: 18

約数和(自身を含む): 31674006

約数和(自身を除く): 11424933

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13313, 39939, 119817, 173069, 519207, 1557621, 2249897, 6749691, 20249073]

約数ペア:

[(1, 20249073), (3, 6749691), (9, 2249897), (13, 1557621), (39, 519207), (117, 173069), (169, 119817), (507, 39939), (1521, 13313)]