20800905

素因数分解:

$3^1\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{1307}}^1$

素因数の和:2376

約数の個数: 16

約数和(自身を含む): 33338304

約数和(自身を除く): 12537399

約数列:

[1, 3, 5, 15, 1061, 1307, 3183, 3921, 5305, 6535, 15915, 19605, 1386727, 4160181, 6933635, 20800905]

約数ペア:

[(1, 20800905), (3, 6933635), (5, 4160181), (15, 1386727), (1061, 19605), (1307, 15915), (3183, 6535), (3921, 5305)]