212866555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{90007}}^1$

素因数の和:90066

約数の個数: 16

約数和(自身を含む): 285145344

約数和(自身を除く): 72278789

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 90007, 450035, 990077, 3870301, 4950385, 19351505, 42573311, 212866555]

約数ペア:

[(1, 212866555), (5, 42573311), (11, 19351505), (43, 4950385), (55, 3870301), (215, 990077), (473, 450035), (2365, 90007)]