21783628

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3089}}^1$

素因数の和:3177

約数の個数: 24

約数和(自身を含む): 39972240

約数和(自身を除く): 18188612

約数列:

[1, 2, 4, 41, 43, 82, 86, 164, 172, 1763, 3089, 3526, 6178, 7052, 12356, 126649, 132827, 253298, 265654, 506596, 531308, 5445907, 10891814, 21783628]

約数ペア:

[(1, 21783628), (2, 10891814), (4, 5445907), (41, 531308), (43, 506596), (82, 265654), (86, 253298), (164, 132827), (172, 126649), (1763, 12356), (3089, 7052), (3526, 6178)]