28295985

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^2$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 46194624

約数和(自身を除く): 17898639

約数列:

[1, 3, 5, 15, 71, 163, 213, 355, 489, 815, 1065, 2445, 11573, 26569, 34719, 57865, 79707, 132845, 173595, 398535, 1886399, 5659197, 9431995, 28295985]

約数ペア:

[(1, 28295985), (3, 9431995), (5, 5659197), (15, 1886399), (71, 398535), (163, 173595), (213, 132845), (355, 79707), (489, 57865), (815, 34719), (1065, 26569), (2445, 11573)]