19894259

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2903}}^1$

素因数の和:3010

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 5196301

約数列:

[1, 7, 11, 77, 89, 623, 979, 2903, 6853, 20321, 31933, 223531, 258367, 1808569, 2842037, 19894259]

約数ペア:

[(1, 19894259), (7, 2842037), (11, 1808569), (77, 258367), (89, 223531), (623, 31933), (979, 20321), (2903, 6853)]