200780391

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71887}}^1$

素因数の和:71923

約数の個数: 24

約数和(自身を含む): 327809280

約数和(自身を除く): 127028889

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 71887, 215661, 503209, 1365853, 1509627, 3522463, 4097559, 9560971, 10567389, 28682913, 66926797, 200780391]

約数ペア:

[(1, 200780391), (3, 66926797), (7, 28682913), (19, 10567389), (21, 9560971), (49, 4097559), (57, 3522463), (133, 1509627), (147, 1365853), (399, 503209), (931, 215661), (2793, 71887)]