12807639

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{12163}}^1$

素因数の和:12188

約数の個数: 20

約数和(自身を含む): 20605816

約数和(自身を除く): 7798177

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 12163, 36489, 109467, 158119, 328401, 474357, 985203, 1423071, 4269213, 12807639]

約数ペア:

[(1, 12807639), (3, 4269213), (9, 1423071), (13, 985203), (27, 474357), (39, 328401), (81, 158119), (117, 109467), (351, 36489), (1053, 12163)]