18720825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{14683}}^1$

素因数の和:14713

約数の個数: 24

約数和(自身を含む): 32774688

約数和(自身を除く): 14053863

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 14683, 44049, 73415, 220245, 249611, 367075, 748833, 1101225, 1248055, 3744165, 6240275, 18720825]

約数ペア:

[(1, 18720825), (3, 6240275), (5, 3744165), (15, 1248055), (17, 1101225), (25, 748833), (51, 367075), (75, 249611), (85, 220245), (255, 73415), (425, 44049), (1275, 14683)]