20959675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{383}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 28569600

約数和(自身を除く): 7609925

約数列:

[1, 5, 11, 25, 55, 199, 275, 383, 995, 1915, 2189, 4213, 4975, 9575, 10945, 21065, 54725, 76217, 105325, 381085, 838387, 1905425, 4191935, 20959675]

約数ペア:

[(1, 20959675), (5, 4191935), (11, 1905425), (25, 838387), (55, 381085), (199, 105325), (275, 76217), (383, 54725), (995, 21065), (1915, 10945), (2189, 9575), (4213, 4975)]