19679985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{33641}}^1$

素因数の和:33665

約数の個数: 24

約数和(自身を含む): 36737064

約数和(自身を除く): 17057079

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 33641, 100923, 168205, 302769, 437333, 504615, 1311999, 1513845, 2186665, 3935997, 6559995, 19679985]

約数ペア:

[(1, 19679985), (3, 6559995), (5, 3935997), (9, 2186665), (13, 1513845), (15, 1311999), (39, 504615), (45, 437333), (65, 302769), (117, 168205), (195, 100923), (585, 33641)]