80886519

素因数分解:

$3^4\times 7^1\times {\mathrm{142657}}^1$

素因数の和:142676

約数の個数: 20

約数和(自身を含む): 138092944

約数和(自身を除く): 57206425

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 142657, 427971, 998599, 1283913, 2995797, 3851739, 8987391, 11555217, 26962173, 80886519]

約数ペア:

[(1, 80886519), (3, 26962173), (7, 11555217), (9, 8987391), (21, 3851739), (27, 2995797), (63, 1283913), (81, 998599), (189, 427971), (567, 142657)]