21283906

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6361}}^1$

素因数の和:6609

約数の個数: 16

約数和(自身を含む): 36645120

約数和(自身を除く): 15361214

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6361, 12722, 44527, 89054, 1520279, 3040558, 10641953, 21283906]

約数ペア:

[(1, 21283906), (2, 10641953), (7, 3040558), (14, 1520279), (239, 89054), (478, 44527), (1673, 12722), (3346, 6361)]