19976854

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{3467}}^1$

素因数の和:3579

約数の個数: 16

約数和(自身を含む): 31128768

約数和(自身を除く): 11151914

約数列:

[1, 2, 43, 67, 86, 134, 2881, 3467, 5762, 6934, 149081, 232289, 298162, 464578, 9988427, 19976854]

約数ペア:

[(1, 19976854), (2, 9988427), (43, 464578), (67, 298162), (86, 232289), (134, 149081), (2881, 6934), (3467, 5762)]