20869527

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13997}}^1$

素因数の和:14078

約数の個数: 16

約数和(自身を含む): 32251392

約数和(自身を除く): 11381865

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13997, 41991, 97979, 293937, 993787, 2981361, 6956509, 20869527]

約数ペア:

[(1, 20869527), (3, 6956509), (7, 2981361), (21, 993787), (71, 293937), (213, 97979), (497, 41991), (1491, 13997)]