19913663

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2417}}^1$

素因数の和:2542

約数の個数: 16

約数和(自身を含む): 25069824

約数和(自身を除く): 5156161

約数列:

[1, 7, 11, 77, 107, 749, 1177, 2417, 8239, 16919, 26587, 186109, 258619, 1810333, 2844809, 19913663]

約数ペア:

[(1, 19913663), (7, 2844809), (11, 1810333), (77, 258619), (107, 186109), (749, 26587), (1177, 16919), (2417, 8239)]