19945849

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{7001}}^1$

素因数の和:7056

約数の個数: 16

約数和(自身を含む): 25543296

約数和(自身を除く): 5597447

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 7001, 49007, 77011, 259037, 539077, 1813259, 2849407, 19945849]

約数ペア:

[(1, 19945849), (7, 2849407), (11, 1813259), (37, 539077), (77, 259037), (259, 77011), (407, 49007), (2849, 7001)]