18742607

素因数分解:

${\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:507

約数の個数: 16

約数和(自身を含む): 21420000

約数和(自身を除く): 2677393

約数列:

[1, 13, 19, 169, 247, 449, 2197, 3211, 5837, 8531, 41743, 75881, 110903, 986453, 1441739, 18742607]

約数ペア:

[(1, 18742607), (13, 1441739), (19, 986453), (169, 110903), (247, 75881), (449, 41743), (2197, 8531), (3211, 5837)]