21183100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{11149}}^1$

素因数の和:11182

約数の個数: 36

約数和(自身を含む): 48391000

約数和(自身を除く): 27207900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 11149, 22298, 44596, 55745, 111490, 211831, 222980, 278725, 423662, 557450, 847324, 1059155, 1114900, 2118310, 4236620, 5295775, 10591550, 21183100]

約数ペア:

[(1, 21183100), (2, 10591550), (4, 5295775), (5, 4236620), (10, 2118310), (19, 1114900), (20, 1059155), (25, 847324), (38, 557450), (50, 423662), (76, 278725), (95, 222980), (100, 211831), (190, 111490), (380, 55745), (475, 44596), (950, 22298), (1900, 11149)]