81668356

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{265157}}^1$

素因数の和:265179

約数の個数: 24

約数和(自身を含む): 178186176

約数和(自身を除く): 96517820

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 265157, 530314, 1060628, 1856099, 2916727, 3712198, 5833454, 7424396, 11666908, 20417089, 40834178, 81668356]

約数ペア:

[(1, 81668356), (2, 40834178), (4, 20417089), (7, 11666908), (11, 7424396), (14, 5833454), (22, 3712198), (28, 2916727), (44, 1856099), (77, 1060628), (154, 530314), (308, 265157)]