21609350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2129}}^1$

素因数の和:2177

約数の個数: 48

約数和(自身を含む): 47541600

約数和(自身を除く): 25932250

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 145, 175, 203, 290, 350, 406, 725, 1015, 1450, 2030, 2129, 4258, 5075, 10150, 10645, 14903, 21290, 29806, 53225, 61741, 74515, 106450, 123482, 149030, 308705, 372575, 432187, 617410, 745150, 864374, 1543525, 2160935, 3087050, 4321870, 10804675, 21609350]

約数ペア:

[(1, 21609350), (2, 10804675), (5, 4321870), (7, 3087050), (10, 2160935), (14, 1543525), (25, 864374), (29, 745150), (35, 617410), (50, 432187), (58, 372575), (70, 308705), (145, 149030), (175, 123482), (203, 106450), (290, 74515), (350, 61741), (406, 53225), (725, 29806), (1015, 21290), (1450, 14903), (2030, 10645), (2129, 10150), (4258, 5075)]