19438381

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 21231360

約数和(自身を除く): 1792979

約数列:

[1, 23, 29, 151, 193, 667, 3473, 4379, 4439, 5597, 29143, 100717, 128731, 670289, 845147, 19438381]

約数ペア:

[(1, 19438381), (23, 845147), (29, 670289), (151, 128731), (193, 100717), (667, 29143), (3473, 5597), (4379, 4439)]