20875575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2339}}^1$

素因数の和:2376

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 20907465

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 175, 255, 357, 425, 525, 595, 1275, 1785, 2339, 2975, 7017, 8925, 11695, 16373, 35085, 39763, 49119, 58475, 81865, 119289, 175425, 198815, 245595, 278341, 409325, 596445, 835023, 994075, 1227975, 1391705, 2982225, 4175115, 6958525, 20875575]

約数ペア:

[(1, 20875575), (3, 6958525), (5, 4175115), (7, 2982225), (15, 1391705), (17, 1227975), (21, 994075), (25, 835023), (35, 596445), (51, 409325), (75, 278341), (85, 245595), (105, 198815), (119, 175425), (175, 119289), (255, 81865), (357, 58475), (425, 49119), (525, 39763), (595, 35085), (1275, 16373), (1785, 11695), (2339, 8925), (2975, 7017)]