19609639

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3929}}^1$

素因数の和:3990

約数の個数: 16

約数和(自身を含む): 24145920

約数和(自身を除く): 4536281

約数列:

[1, 7, 23, 31, 161, 217, 713, 3929, 4991, 27503, 90367, 121799, 632569, 852593, 2801377, 19609639]

約数ペア:

[(1, 19609639), (7, 2801377), (23, 852593), (31, 632569), (161, 121799), (217, 90367), (713, 27503), (3929, 4991)]