20786217

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{613}}^1$

素因数の和:832

約数の個数: 16

約数和(自身を含む): 28293120

約数和(自身を除く): 7506903

約数列:

[1, 3, 89, 127, 267, 381, 613, 1839, 11303, 33909, 54557, 77851, 163671, 233553, 6928739, 20786217]

約数ペア:

[(1, 20786217), (3, 6928739), (89, 233553), (127, 163671), (267, 77851), (381, 54557), (613, 33909), (1839, 11303)]