19499837

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3907}}^1$

素因数の和:3968

約数の個数: 16

約数和(自身を含む): 24010752

約数和(自身を除く): 4510915

約数列:

[1, 7, 23, 31, 161, 217, 713, 3907, 4991, 27349, 89861, 121117, 629027, 847819, 2785691, 19499837]

約数ペア:

[(1, 19499837), (7, 2785691), (23, 847819), (31, 629027), (161, 121117), (217, 89861), (713, 27349), (3907, 4991)]