28180894

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{28351}}^1$

素因数の和:28431

約数の個数: 16

約数和(自身を含む): 48992256

約数和(自身を除く): 20811362

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 28351, 56702, 198457, 396914, 2012921, 4025842, 14090447, 28180894]

約数ペア:

[(1, 28180894), (2, 14090447), (7, 4025842), (14, 2012921), (71, 396914), (142, 198457), (497, 56702), (994, 28351)]