209515908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{2494237}}^1$

素因数の和:2494251

約数の個数: 24

約数和(自身を含む): 558709312

約数和(自身を除く): 349193404

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 2494237, 4988474, 7482711, 9976948, 14965422, 17459659, 29930844, 34919318, 52378977, 69838636, 104757954, 209515908]

約数ペア:

[(1, 209515908), (2, 104757954), (3, 69838636), (4, 52378977), (6, 34919318), (7, 29930844), (12, 17459659), (14, 14965422), (21, 9976948), (28, 7482711), (42, 4988474), (84, 2494237)]