19943231

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11261}}^1$

素因数の和:11302

約数の個数: 16

約数和(自身を含む): 25947648

約数和(自身を除く): 6004417

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11261, 78827, 123871, 259003, 867097, 1813021, 2849033, 19943231]

約数ペア:

[(1, 19943231), (7, 2849033), (11, 1813021), (23, 867097), (77, 259003), (161, 123871), (253, 78827), (1771, 11261)]