20985129

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{70657}}^1$

素因数の和:70677

約数の個数: 16

約数和(自身を含む): 33915840

約数和(自身を除く): 12930711

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 70657, 211971, 635913, 777227, 1907739, 2331681, 6995043, 20985129]

約数ペア:

[(1, 20985129), (3, 6995043), (9, 2331681), (11, 1907739), (27, 777227), (33, 635913), (99, 211971), (297, 70657)]