21440643

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{12301}}^1$

素因数の和:12394

約数の個数: 16

約数和(自身を含む): 33067776

約数和(自身を除く): 11627133

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 12301, 36903, 86107, 258321, 1020983, 3062949, 7146881, 21440643]

約数ペア:

[(1, 21440643), (3, 7146881), (7, 3062949), (21, 1020983), (83, 258321), (249, 86107), (581, 36903), (1743, 12301)]