21900004

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{21139}}^1$

素因数の和:21187

約数の個数: 24

約数和(自身を含む): 44985920

約数和(自身を除く): 23085916

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 21139, 42278, 84556, 147973, 295946, 591892, 782143, 1564286, 3128572, 5475001, 10950002, 21900004]

約数ペア:

[(1, 21900004), (2, 10950002), (4, 5475001), (7, 3128572), (14, 1564286), (28, 782143), (37, 591892), (74, 295946), (148, 147973), (259, 84556), (518, 42278), (1036, 21139)]