280706937

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{17519}}^1$

素因数の和:17645

約数の個数: 24

約数和(自身を含む): 439401600

約数和(自身を除く): 158694663

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 2289, 5341, 16023, 17519, 52557, 122633, 367899, 858431, 1909571, 2575293, 5728713, 13366997, 40100991, 93568979, 280706937]

約数ペア:

[(1, 280706937), (3, 93568979), (7, 40100991), (21, 13366997), (49, 5728713), (109, 2575293), (147, 1909571), (327, 858431), (763, 367899), (2289, 122633), (5341, 52557), (16023, 17519)]