19916353

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:364

約数の個数: 16

約数和(自身を含む): 21446656

約数和(自身を除く): 1530303

約数列:

[1, 31, 43, 67, 223, 1333, 2077, 2881, 6913, 9589, 14941, 89311, 297259, 463171, 642463, 19916353]

約数ペア:

[(1, 19916353), (31, 642463), (43, 463171), (67, 297259), (223, 89311), (1333, 14941), (2077, 9589), (2881, 6913)]