81789543

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{2081}}^1$

素因数の和:2495

約数の個数: 24

約数和(自身を含む): 129267216

約数和(自身を除く): 47477673

約数列:

[1, 3, 9, 11, 33, 99, 397, 1191, 2081, 3573, 4367, 6243, 13101, 18729, 22891, 39303, 68673, 206019, 826157, 2478471, 7435413, 9087727, 27263181, 81789543]

約数ペア:

[(1, 81789543), (3, 27263181), (9, 9087727), (11, 7435413), (33, 2478471), (99, 826157), (397, 206019), (1191, 68673), (2081, 39303), (3573, 22891), (4367, 18729), (6243, 13101)]