19887825

素因数分解:

$3^1\times 5^2\times {\mathrm{283}}^1\times {\mathrm{937}}^1$

素因数の和:1233

約数の個数: 24

約数和(自身を含む): 33032608

約数和(自身を除く): 13144783

約数列:

[1, 3, 5, 15, 25, 75, 283, 849, 937, 1415, 2811, 4245, 4685, 7075, 14055, 21225, 23425, 70275, 265171, 795513, 1325855, 3977565, 6629275, 19887825]

約数ペア:

[(1, 19887825), (3, 6629275), (5, 3977565), (15, 1325855), (25, 795513), (75, 265171), (283, 70275), (849, 23425), (937, 21225), (1415, 14055), (2811, 7075), (4245, 4685)]