21987449323

素因数分解:

$7^1\times {\mathrm{691}}^1\times {\mathrm{1031}}^1\times {\mathrm{4409}}^1$

素因数の和:6138

約数の個数: 16

約数和(自身を含む): 25195000320

約数和(自身を除く): 3207550997

約数列:

[1, 7, 691, 1031, 4409, 4837, 7217, 30863, 712421, 3046619, 4545679, 4986947, 21326333, 31819753, 3141064189, 21987449323]

約数ペア:

[(1, 21987449323), (7, 3141064189), (691, 31819753), (1031, 21326333), (4409, 4986947), (4837, 4545679), (7217, 3046619), (30863, 712421)]