20967316

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{877}}^1$

素因数の和:1063

約数の個数: 24

約数和(自身を含む): 37859360

約数和(自身を除く): 16892044

約数列:

[1, 2, 4, 43, 86, 139, 172, 278, 556, 877, 1754, 3508, 5977, 11954, 23908, 37711, 75422, 121903, 150844, 243806, 487612, 5241829, 10483658, 20967316]

約数ペア:

[(1, 20967316), (2, 10483658), (4, 5241829), (43, 487612), (86, 243806), (139, 150844), (172, 121903), (278, 75422), (556, 37711), (877, 23908), (1754, 11954), (3508, 5977)]