19980396

素因数分解:

$2^2\times 3^2\times {\mathrm{199}}^1\times {\mathrm{2789}}^1$

素因数の和:2998

約数の個数: 36

約数和(自身を含む): 50778000

約数和(自身を除く): 30797604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 199, 398, 597, 796, 1194, 1791, 2388, 2789, 3582, 5578, 7164, 8367, 11156, 16734, 25101, 33468, 50202, 100404, 555011, 1110022, 1665033, 2220044, 3330066, 4995099, 6660132, 9990198, 19980396]

約数ペア:

[(1, 19980396), (2, 9990198), (3, 6660132), (4, 4995099), (6, 3330066), (9, 2220044), (12, 1665033), (18, 1110022), (36, 555011), (199, 100404), (398, 50202), (597, 33468), (796, 25101), (1194, 16734), (1791, 11156), (2388, 8367), (2789, 7164), (3582, 5578)]