19858586

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2207}}^1$

素因数の和:2629

約数の個数: 16

約数和(自身を含む): 32590080

約数和(自身を除く): 12731494

約数列:

[1, 2, 11, 22, 409, 818, 2207, 4414, 4499, 8998, 24277, 48554, 902663, 1805326, 9929293, 19858586]

約数ペア:

[(1, 19858586), (2, 9929293), (11, 1805326), (22, 902663), (409, 48554), (818, 24277), (2207, 8998), (4414, 4499)]