8420686

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:256

約数の個数: 24

約数和(自身を含む): 13578840

約数和(自身を除く): 5158154

約数列:

[1, 2, 19, 38, 107, 109, 214, 218, 361, 722, 2033, 2071, 4066, 4142, 11663, 23326, 38627, 39349, 77254, 78698, 221597, 443194, 4210343, 8420686]

約数ペア:

[(1, 8420686), (2, 4210343), (19, 443194), (38, 221597), (107, 78698), (109, 77254), (214, 39349), (218, 38627), (361, 23326), (722, 11663), (2033, 4142), (2071, 4066)]