20792821

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1231}}^1$

素因数の和:1384

約数の個数: 16

約数和(自身を含む): 25231360

約数和(自身を除く): 4438539

約数列:

[1, 7, 19, 127, 133, 889, 1231, 2413, 8617, 16891, 23389, 156337, 163723, 1094359, 2970403, 20792821]

約数ペア:

[(1, 20792821), (7, 2970403), (19, 1094359), (127, 163723), (133, 156337), (889, 23389), (1231, 16891), (2413, 8617)]