21489035

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{787}}^1$

素因数の和:962

約数の個数: 16

約数和(自身を含む): 26628096

約数和(自身を除く): 5139061

約数列:

[1, 5, 43, 127, 215, 635, 787, 3935, 5461, 27305, 33841, 99949, 169205, 499745, 4297807, 21489035]

約数ペア:

[(1, 21489035), (5, 4297807), (43, 499745), (127, 169205), (215, 99949), (635, 33841), (787, 27305), (3935, 5461)]