19870391569

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{2699}}^1\times {\mathrm{10211}}^1$

素因数の和:13020

約数の個数: 16

約数和(自身を含む): 22940236800

約数和(自身を除く): 3069845231

約数列:

[1, 7, 103, 721, 2699, 10211, 18893, 71477, 277997, 1051733, 1945979, 7362131, 27559489, 192916423, 2838627367, 19870391569]

約数ペア:

[(1, 19870391569), (7, 2838627367), (103, 192916423), (721, 27559489), (2699, 7362131), (10211, 1945979), (18893, 1051733), (71477, 277997)]