81720303

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{37781}}^1$

素因数の和:37894

約数の個数: 16

約数和(自身を含む): 125738496

約数和(自身を除く): 44018193

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 37781, 113343, 264467, 793401, 3891443, 11674329, 27240101, 81720303]

約数ペア:

[(1, 81720303), (3, 27240101), (7, 11674329), (21, 3891443), (103, 793401), (309, 264467), (721, 113343), (2163, 37781)]