20264181

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13591}}^1$

素因数の和:13672

約数の個数: 16

約数和(自身を含む): 31315968

約数和(自身を除く): 11051787

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13591, 40773, 95137, 285411, 964961, 2894883, 6754727, 20264181]

約数ペア:

[(1, 20264181), (3, 6754727), (7, 2894883), (21, 964961), (71, 285411), (213, 95137), (497, 40773), (1491, 13591)]