19817378

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19937}}^1$

素因数の和:20017

約数の個数: 16

約数和(自身を含む): 34452864

約数和(自身を除く): 14635486

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 19937, 39874, 139559, 279118, 1415527, 2831054, 9908689, 19817378]

約数ペア:

[(1, 19817378), (2, 9908689), (7, 2831054), (14, 1415527), (71, 279118), (142, 139559), (497, 39874), (994, 19937)]