21209546

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3643}}^1$

素因数の和:3757

約数の個数: 16

約数和(自身を含む): 33058368

約数和(自身を除く): 11848822

約数列:

[1, 2, 41, 71, 82, 142, 2911, 3643, 5822, 7286, 149363, 258653, 298726, 517306, 10604773, 21209546]

約数ペア:

[(1, 21209546), (2, 10604773), (41, 517306), (71, 298726), (82, 258653), (142, 149363), (2911, 7286), (3643, 5822)]