19943287

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3271}}^1$

素因数の和:3358

約数の個数: 16

約数和(自身を含む): 24919552

約数和(自身を除く): 4976265

約数列:

[1, 7, 13, 67, 91, 469, 871, 3271, 6097, 22897, 42523, 219157, 297661, 1534099, 2849041, 19943287]

約数ペア:

[(1, 19943287), (7, 2849041), (13, 1534099), (67, 297661), (91, 219157), (469, 42523), (871, 22897), (3271, 6097)]