21095950

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^2\times {\mathrm{191}}^1$

素因数の和:297

約数の個数: 36

約数和(自身を含む): 40300992

約数和(自身を除く): 19205042

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 191, 235, 382, 470, 955, 1175, 1910, 2209, 2350, 4418, 4775, 8977, 9550, 11045, 17954, 22090, 44885, 55225, 89770, 110450, 224425, 421919, 448850, 843838, 2109595, 4219190, 10547975, 21095950]

約数ペア:

[(1, 21095950), (2, 10547975), (5, 4219190), (10, 2109595), (25, 843838), (47, 448850), (50, 421919), (94, 224425), (191, 110450), (235, 89770), (382, 55225), (470, 44885), (955, 22090), (1175, 17954), (1910, 11045), (2209, 9550), (2350, 8977), (4418, 4775)]