19498666

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:630

約数の個数: 24

約数和(自身を含む): 32390820

約数和(自身を除く): 12892154

約数列:

[1, 2, 11, 22, 121, 197, 242, 394, 409, 818, 2167, 4334, 4499, 8998, 23837, 47674, 49489, 80573, 98978, 161146, 886303, 1772606, 9749333, 19498666]

約数ペア:

[(1, 19498666), (2, 9749333), (11, 1772606), (22, 886303), (121, 161146), (197, 98978), (242, 80573), (394, 49489), (409, 47674), (818, 23837), (2167, 8998), (4334, 4499)]