19990691

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5419}}^1$

素因数の和:5474

約数の個数: 16

約数和(自身を含む): 24975360

約数和(自身を除く): 4984669

約数列:

[1, 7, 17, 31, 119, 217, 527, 3689, 5419, 37933, 92123, 167989, 644861, 1175923, 2855813, 19990691]

約数ペア:

[(1, 19990691), (7, 2855813), (17, 1175923), (31, 644861), (119, 167989), (217, 92123), (527, 37933), (3689, 5419)]