391789994

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{1123}}^1\times {\mathrm{9181}}^1$

素因数の和:10325

約数の個数: 16

約数和(自身を含む): 619234080

約数和(自身を除く): 227444086

約数列:

[1, 2, 19, 38, 1123, 2246, 9181, 18362, 21337, 42674, 174439, 348878, 10310263, 20620526, 195894997, 391789994]

約数ペア:

[(1, 391789994), (2, 195894997), (19, 20620526), (38, 10310263), (1123, 348878), (2246, 174439), (9181, 42674), (18362, 21337)]