21057814

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{5179}}^1$

素因数の和:5307

約数の個数: 16

約数和(自身を含む): 33566400

約数和(自身を除く): 12508586

約数列:

[1, 2, 19, 38, 107, 214, 2033, 4066, 5179, 10358, 98401, 196802, 554153, 1108306, 10528907, 21057814]

約数ペア:

[(1, 21057814), (2, 10528907), (19, 1108306), (38, 554153), (107, 196802), (214, 98401), (2033, 10358), (4066, 5179)]