19800027

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{739}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 30976400

約数和(自身を除く): 11176373

約数列:

[1, 3, 9, 13, 39, 117, 229, 687, 739, 2061, 2217, 2977, 6651, 8931, 9607, 26793, 28821, 86463, 169231, 507693, 1523079, 2200003, 6600009, 19800027]

約数ペア:

[(1, 19800027), (3, 6600009), (9, 2200003), (13, 1523079), (39, 507693), (117, 169231), (229, 86463), (687, 28821), (739, 26793), (2061, 9607), (2217, 8931), (2977, 6651)]