21682087

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{1117}}^1$

素因数の和:1230

約数の個数: 16

約数和(自身を含む): 25758720

約数和(自身を除く): 4076633

約数列:

[1, 7, 47, 59, 329, 413, 1117, 2773, 7819, 19411, 52499, 65903, 367493, 461321, 3097441, 21682087]

約数ペア:

[(1, 21682087), (7, 3097441), (47, 461321), (59, 367493), (329, 65903), (413, 52499), (1117, 19411), (2773, 7819)]