31991427

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2153}}^1$

素因数の和:2299

約数の個数: 24

約数和(自身を含む): 50179584

約数和(自身を除く): 18188157

約数列:

[1, 3, 9, 13, 39, 117, 127, 381, 1143, 1651, 2153, 4953, 6459, 14859, 19377, 27989, 83967, 251901, 273431, 820293, 2460879, 3554603, 10663809, 31991427]

約数ペア:

[(1, 31991427), (3, 10663809), (9, 3554603), (13, 2460879), (39, 820293), (117, 273431), (127, 251901), (381, 83967), (1143, 27989), (1651, 19377), (2153, 14859), (4953, 6459)]