20791043

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 26353152

約数和(自身を除く): 5562109

約数列:

[1, 7, 13, 49, 91, 127, 257, 637, 889, 1651, 1799, 3341, 6223, 11557, 12593, 23387, 32639, 80899, 163709, 228473, 424307, 1599311, 2970149, 20791043]

約数ペア:

[(1, 20791043), (7, 2970149), (13, 1599311), (49, 424307), (91, 228473), (127, 163709), (257, 80899), (637, 32639), (889, 23387), (1651, 12593), (1799, 11557), (3341, 6223)]