18866485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 25915392

約数和(自身を除く): 7048907

約数列:

[1, 5, 11, 37, 55, 73, 127, 185, 365, 407, 635, 803, 1397, 2035, 2701, 4015, 4699, 6985, 9271, 13505, 23495, 29711, 46355, 51689, 101981, 148555, 258445, 343027, 509905, 1715135, 3773297, 18866485]

約数ペア:

[(1, 18866485), (5, 3773297), (11, 1715135), (37, 509905), (55, 343027), (73, 258445), (127, 148555), (185, 101981), (365, 51689), (407, 46355), (635, 29711), (803, 23495), (1397, 13505), (2035, 9271), (2701, 6985), (4015, 4699)]