21066584

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3109}}^1$

素因数の和:3144

約数の個数: 48

約数和(自身を含む): 49635600

約数和(自身を除く): 28569016

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 3109, 3388, 6218, 6776, 12436, 21763, 24872, 34199, 43526, 68398, 87052, 136796, 174104, 239393, 273592, 376189, 478786, 752378, 957572, 1504756, 1915144, 2633323, 3009512, 5266646, 10533292, 21066584]

約数ペア:

[(1, 21066584), (2, 10533292), (4, 5266646), (7, 3009512), (8, 2633323), (11, 1915144), (14, 1504756), (22, 957572), (28, 752378), (44, 478786), (56, 376189), (77, 273592), (88, 239393), (121, 174104), (154, 136796), (242, 87052), (308, 68398), (484, 43526), (616, 34199), (847, 24872), (968, 21763), (1694, 12436), (3109, 6776), (3388, 6218)]