20564817

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75329}}^1$

素因数の和:75352

約数の個数: 16

約数和(自身を含む): 33747840

約数和(自身を除く): 13183023

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75329, 225987, 527303, 979277, 1581909, 2937831, 6854939, 20564817]

約数ペア:

[(1, 20564817), (3, 6854939), (7, 2937831), (13, 1581909), (21, 979277), (39, 527303), (91, 225987), (273, 75329)]