20199180057

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2231707}}^1$

素因数の和:2232148

約数の個数: 16

約数和(自身を含む): 30851131392

約数和(自身を除く): 10651951335

約数列:

[1, 3, 7, 21, 431, 1293, 3017, 9051, 2231707, 6695121, 15621949, 46865847, 961865717, 2885597151, 6733060019, 20199180057]

約数ペア:

[(1, 20199180057), (3, 6733060019), (7, 2885597151), (21, 961865717), (431, 46865847), (1293, 15621949), (3017, 6695121), (9051, 2231707)]