19999425

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{7207}}^1$

素因数の和:7257

約数の個数: 24

約数和(自身を含む): 33964096

約数和(自身を除く): 13964671

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 555, 925, 2775, 7207, 21621, 36035, 108105, 180175, 266659, 540525, 799977, 1333295, 3999885, 6666475, 19999425]

約数ペア:

[(1, 19999425), (3, 6666475), (5, 3999885), (15, 1333295), (25, 799977), (37, 540525), (75, 266659), (111, 180175), (185, 108105), (555, 36035), (925, 21621), (2775, 7207)]