21068025

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25537}}^1$

素因数の和:25561

約数の個数: 24

約数和(自身を含む): 38000544

約数和(自身を除く): 16932519

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25537, 76611, 127685, 280907, 383055, 638425, 842721, 1404535, 1915275, 4213605, 7022675, 21068025]

約数ペア:

[(1, 21068025), (3, 7022675), (5, 4213605), (11, 1915275), (15, 1404535), (25, 842721), (33, 638425), (55, 383055), (75, 280907), (165, 127685), (275, 76611), (825, 25537)]