20804598139

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{55931}}^1$

素因数の和:56059

約数の個数: 24

約数和(自身を含む): 23582721024

約数和(自身を除く): 2778122885

約数列:

[1, 13, 31, 71, 169, 403, 923, 2201, 5239, 11999, 28613, 55931, 371969, 727103, 1733861, 3971101, 9452339, 22540193, 51624313, 123104131, 293022509, 671116069, 1600353703, 20804598139]

約数ペア:

[(1, 20804598139), (13, 1600353703), (31, 671116069), (71, 293022509), (169, 123104131), (403, 51624313), (923, 22540193), (2201, 9452339), (5239, 3971101), (11999, 1733861), (28613, 727103), (55931, 371969)]