19215119

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{971}}^1$

素因数の和:1246

約数の個数: 16

約数和(自身を含む): 24074496

約数和(自身を除く): 4859377

約数列:

[1, 7, 11, 77, 257, 971, 1799, 2827, 6797, 10681, 19789, 74767, 249547, 1746829, 2745017, 19215119]

約数ペア:

[(1, 19215119), (7, 2745017), (11, 1746829), (77, 249547), (257, 74767), (971, 19789), (1799, 10681), (2827, 6797)]