20178801

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{6733}}^1$

素因数の和:6782

約数の個数: 20

約数和(自身を含む): 30962932

約数和(自身を除く): 10784131

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 6733, 20199, 60597, 181791, 249121, 545373, 747363, 2242089, 6726267, 20178801]

約数ペア:

[(1, 20178801), (3, 6726267), (9, 2242089), (27, 747363), (37, 545373), (81, 249121), (111, 181791), (333, 60597), (999, 20199), (2997, 6733)]