19853393

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{389}}^1$

素因数の和:736

約数の個数: 16

約数和(自身を含む): 23811840

約数和(自身を除く): 3958447

約数列:

[1, 7, 23, 161, 317, 389, 2219, 2723, 7291, 8947, 51037, 62629, 123313, 863191, 2836199, 19853393]

約数ペア:

[(1, 19853393), (7, 2836199), (23, 863191), (161, 123313), (317, 62629), (389, 51037), (2219, 8947), (2723, 7291)]