20287545

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79559}}^1$

素因数の和:79584

約数の個数: 16

約数和(自身を含む): 34369920

約数和(自身を除く): 14082375

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 79559, 238677, 397795, 1193385, 1352503, 4057509, 6762515, 20287545]

約数ペア:

[(1, 20287545), (3, 6762515), (5, 4057509), (15, 1352503), (17, 1193385), (51, 397795), (85, 238677), (255, 79559)]