20376566

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 36261120

約数和(自身を除く): 15884554

約数列:

[1, 2, 7, 14, 37, 74, 139, 259, 278, 283, 518, 566, 973, 1946, 1981, 3962, 5143, 10286, 10471, 20942, 36001, 39337, 72002, 73297, 78674, 146594, 275359, 550718, 1455469, 2910938, 10188283, 20376566]

約数ペア:

[(1, 20376566), (2, 10188283), (7, 2910938), (14, 1455469), (37, 550718), (74, 275359), (139, 146594), (259, 78674), (278, 73297), (283, 72002), (518, 39337), (566, 36001), (973, 20942), (1946, 10471), (1981, 10286), (3962, 5143)]