21530175

素因数分解:

$3^1\times 5^2\times {\mathrm{257}}^1\times {\mathrm{1117}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 35767056

約数和(自身を除く): 14236881

約数列:

[1, 3, 5, 15, 25, 75, 257, 771, 1117, 1285, 3351, 3855, 5585, 6425, 16755, 19275, 27925, 83775, 287069, 861207, 1435345, 4306035, 7176725, 21530175]

約数ペア:

[(1, 21530175), (3, 7176725), (5, 4306035), (15, 1435345), (25, 861207), (75, 287069), (257, 83775), (771, 27925), (1117, 19275), (1285, 16755), (3351, 6425), (3855, 5585)]