21811150

素因数分解:

$2^1\times 5^2\times {\mathrm{179}}^1\times {\mathrm{2437}}^1$

素因数の和:2628

約数の個数: 24

約数和(自身を含む): 40812120

約数和(自身を除く): 19000970

約数列:

[1, 2, 5, 10, 25, 50, 179, 358, 895, 1790, 2437, 4475, 4874, 8950, 12185, 24370, 60925, 121850, 436223, 872446, 2181115, 4362230, 10905575, 21811150]

約数ペア:

[(1, 21811150), (2, 10905575), (5, 4362230), (10, 2181115), (25, 872446), (50, 436223), (179, 121850), (358, 60925), (895, 24370), (1790, 12185), (2437, 8950), (4475, 4874)]