19287585

素因数分解:

$3^3\times 5^1\times {\mathrm{142871}}^1$

素因数の和:142885

約数の個数: 16

約数和(自身を含む): 34289280

約数和(自身を除く): 15001695

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 142871, 428613, 714355, 1285839, 2143065, 3857517, 6429195, 19287585]

約数ペア:

[(1, 19287585), (3, 6429195), (5, 3857517), (9, 2143065), (15, 1285839), (27, 714355), (45, 428613), (135, 142871)]