18990286

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{15241}}^1$

素因数の和:15339

約数の個数: 16

約数和(自身を含む): 32922720

約数和(自身を除く): 13932434

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 15241, 30482, 106687, 213374, 1356449, 2712898, 9495143, 18990286]

約数ペア:

[(1, 18990286), (2, 9495143), (7, 2712898), (14, 1356449), (89, 213374), (178, 106687), (623, 30482), (1246, 15241)]