21271180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151937}}^1$

素因数の和:151953

約数の個数: 24

約数和(自身を含む): 51051168

約数和(自身を除く): 29779988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151937, 303874, 607748, 759685, 1063559, 1519370, 2127118, 3038740, 4254236, 5317795, 10635590, 21271180]

約数ペア:

[(1, 21271180), (2, 10635590), (4, 5317795), (5, 4254236), (7, 3038740), (10, 2127118), (14, 1519370), (20, 1063559), (28, 759685), (35, 607748), (70, 303874), (140, 151937)]