18722669

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:500

約数の個数: 16

約数和(自身を含む): 21962880

約数和(自身を除く): 3240211

約数列:

[1, 7, 61, 163, 269, 427, 1141, 1883, 9943, 16409, 43847, 69601, 114863, 306929, 2674667, 18722669]

約数ペア:

[(1, 18722669), (7, 2674667), (61, 306929), (163, 114863), (269, 69601), (427, 43847), (1141, 16409), (1883, 9943)]