81051957

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{31379}}^1$

素因数の和:31433

約数の個数: 24

約数和(自身を含む): 137067840

約数和(自身を除く): 56015883

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 31379, 94137, 219653, 282411, 658959, 1286539, 1976877, 3859617, 9005773, 11578851, 27017319, 81051957]

約数ペア:

[(1, 81051957), (3, 27017319), (7, 11578851), (9, 9005773), (21, 3859617), (41, 1976877), (63, 1286539), (123, 658959), (287, 282411), (369, 219653), (861, 94137), (2583, 31379)]