19897157

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4519}}^1$

素因数の和:4580

約数の個数: 16

約数和(自身を含む): 24733440

約数和(自身を除く): 4836283

約数列:

[1, 7, 17, 37, 119, 259, 629, 4403, 4519, 31633, 76823, 167203, 537761, 1170421, 2842451, 19897157]

約数ペア:

[(1, 19897157), (7, 2842451), (17, 1170421), (37, 537761), (119, 167203), (259, 76823), (629, 31633), (4403, 4519)]