87781887

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{7177}}^1$

素因数の和:7340

約数の個数: 20

約数和(自身を含む): 132017776

約数和(自身を除く): 44235889

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 4077, 7177, 12231, 21531, 64593, 193779, 581337, 1083727, 3251181, 9753543, 29260629, 87781887]

約数ペア:

[(1, 87781887), (3, 29260629), (9, 9753543), (27, 3251181), (81, 1083727), (151, 581337), (453, 193779), (1359, 64593), (4077, 21531), (7177, 12231)]