19983003

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 29736960

約数和(自身を除く): 9753957

約数列:

[1, 3, 19, 31, 43, 57, 93, 129, 263, 589, 789, 817, 1333, 1767, 2451, 3999, 4997, 8153, 11309, 14991, 24459, 25327, 33927, 75981, 154907, 214871, 350579, 464721, 644613, 1051737, 6661001, 19983003]

約数ペア:

[(1, 19983003), (3, 6661001), (19, 1051737), (31, 644613), (43, 464721), (57, 350579), (93, 214871), (129, 154907), (263, 75981), (589, 33927), (789, 25327), (817, 24459), (1333, 14991), (1767, 11309), (2451, 8153), (3999, 4997)]