18724321

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{34739}}^1$

素因数の和:34764

約数の個数: 12

約数和(自身を含む): 23762160

約数和(自身を除く): 5037839

約数列:

[1, 7, 11, 49, 77, 539, 34739, 243173, 382129, 1702211, 2674903, 18724321]

約数ペア:

[(1, 18724321), (7, 2674903), (11, 1702211), (49, 382129), (77, 243173), (539, 34739)]