28728525

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{54721}}^1$

素因数の和:54741

約数の個数: 24

約数和(自身を含む): 54284224

約数和(自身を除く): 25555699

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 54721, 164163, 273605, 383047, 820815, 1149141, 1368025, 1915235, 4104075, 5745705, 9576175, 28728525]

約数ペア:

[(1, 28728525), (3, 9576175), (5, 5745705), (7, 4104075), (15, 1915235), (21, 1368025), (25, 1149141), (35, 820815), (75, 383047), (105, 273605), (175, 164163), (525, 54721)]