81658161

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16231}}^1$

素因数の和:16293

約数の個数: 24

約数和(自身を含む): 129985856

約数和(自身を除く): 48327695

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 16231, 48693, 146079, 211003, 633009, 697933, 1899027, 2093799, 6281397, 9073129, 27219387, 81658161]

約数ペア:

[(1, 81658161), (3, 27219387), (9, 9073129), (13, 6281397), (39, 2093799), (43, 1899027), (117, 697933), (129, 633009), (387, 211003), (559, 146079), (1677, 48693), (5031, 16231)]