21000404878

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1\times {\mathrm{18917}}^1$

素因数の和:19356

約数の個数: 32

約数和(自身を含む): 33785429184

約数和(自身を除く): 12785024306

約数列:

[1, 2, 17, 34, 103, 206, 317, 634, 1751, 3502, 5389, 10778, 18917, 32651, 37834, 65302, 321589, 555067, 643178, 1110134, 1948451, 3896902, 5996689, 11993378, 33123667, 66247334, 101943713, 203887426, 617658967, 1235317934, 10500202439, 21000404878]

約数ペア:

[(1, 21000404878), (2, 10500202439), (17, 1235317934), (34, 617658967), (103, 203887426), (206, 101943713), (317, 66247334), (634, 33123667), (1751, 11993378), (3502, 5996689), (5389, 3896902), (10778, 1948451), (18917, 1110134), (32651, 643178), (37834, 555067), (65302, 321589)]