287691831

素因数分解:

$3^6\times 7^1\times {\mathrm{56377}}^1$

素因数の和:56402

約数の個数: 28

約数和(自身を含む): 492969232

約数和(自身を除く): 205277401

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 56377, 169131, 394639, 507393, 1183917, 1522179, 3551751, 4566537, 10655253, 13699611, 31965759, 41098833, 95897277, 287691831]

約数ペア:

[(1, 287691831), (3, 95897277), (7, 41098833), (9, 31965759), (21, 13699611), (27, 10655253), (63, 4566537), (81, 3551751), (189, 1522179), (243, 1183917), (567, 507393), (729, 394639), (1701, 169131), (5103, 56377)]