19995825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{15683}}^1$

素因数の和:15713

約数の個数: 24

約数和(自身を含む): 35006688

約数和(自身を除く): 15010863

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 15683, 47049, 78415, 235245, 266611, 392075, 799833, 1176225, 1333055, 3999165, 6665275, 19995825]

約数ペア:

[(1, 19995825), (3, 6665275), (5, 3999165), (15, 1333055), (17, 1176225), (25, 799833), (51, 392075), (75, 266611), (85, 235245), (255, 78415), (425, 47049), (1275, 15683)]