81905571

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{5479}}^1$

素因数の和:5647

約数の個数: 24

約数和(自身を含む): 129941760

約数和(自身を除く): 48036189

約数列:

[1, 3, 9, 11, 33, 99, 151, 453, 1359, 1661, 4983, 5479, 14949, 16437, 49311, 60269, 180807, 542421, 827329, 2481987, 7445961, 9100619, 27301857, 81905571]

約数ペア:

[(1, 81905571), (3, 27301857), (9, 9100619), (11, 7445961), (33, 2481987), (99, 827329), (151, 542421), (453, 180807), (1359, 60269), (1661, 49311), (4983, 16437), (5479, 14949)]