20665628

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{877}}^1$

素因数の和:1061

約数の個数: 24

約数和(自身を含む): 37318512

約数和(自身を除く): 16652884

約数列:

[1, 2, 4, 43, 86, 137, 172, 274, 548, 877, 1754, 3508, 5891, 11782, 23564, 37711, 75422, 120149, 150844, 240298, 480596, 5166407, 10332814, 20665628]

約数ペア:

[(1, 20665628), (2, 10332814), (4, 5166407), (43, 480596), (86, 240298), (137, 150844), (172, 120149), (274, 75422), (548, 37711), (877, 23564), (1754, 11782), (3508, 5891)]