19129999

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{233}}^1\times {\mathrm{317}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 22621248

約数和(自身を除く): 3491249

約数列:

[1, 7, 37, 233, 259, 317, 1631, 2219, 8621, 11729, 60347, 73861, 82103, 517027, 2732857, 19129999]

約数ペア:

[(1, 19129999), (7, 2732857), (37, 517027), (233, 82103), (259, 73861), (317, 60347), (1631, 11729), (2219, 8621)]