18540159

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 28159488

約数和(自身を除く): 9619329

約数列:

[1, 3, 11, 33, 41, 71, 123, 193, 213, 451, 579, 781, 1353, 2123, 2343, 2911, 6369, 7913, 8733, 13703, 23739, 32021, 41109, 87043, 96063, 150733, 261129, 452199, 561823, 1685469, 6180053, 18540159]

約数ペア:

[(1, 18540159), (3, 6180053), (11, 1685469), (33, 561823), (41, 452199), (71, 261129), (123, 150733), (193, 96063), (213, 87043), (451, 41109), (579, 32021), (781, 23739), (1353, 13703), (2123, 8733), (2343, 7913), (2911, 6369)]