81423381

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2111}}^1$

素因数の和:2193

約数の個数: 32

約数和(自身を含む): 124895232

約数和(自身を除く): 43471851

約数列:

[1, 3, 13, 23, 39, 43, 69, 129, 299, 559, 897, 989, 1677, 2111, 2967, 6333, 12857, 27443, 38571, 48553, 82329, 90773, 145659, 272319, 631189, 1180049, 1893567, 2087779, 3540147, 6263337, 27141127, 81423381]

約数ペア:

[(1, 81423381), (3, 27141127), (13, 6263337), (23, 3540147), (39, 2087779), (43, 1893567), (69, 1180049), (129, 631189), (299, 272319), (559, 145659), (897, 90773), (989, 82329), (1677, 48553), (2111, 38571), (2967, 27443), (6333, 12857)]