19117274

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:622

約数の個数: 24

約数和(自身を含む): 31758804

約数和(自身を除く): 12641530

約数列:

[1, 2, 11, 22, 121, 197, 242, 394, 401, 802, 2167, 4334, 4411, 8822, 23837, 47674, 48521, 78997, 97042, 157994, 868967, 1737934, 9558637, 19117274]

約数ペア:

[(1, 19117274), (2, 9558637), (11, 1737934), (22, 868967), (121, 157994), (197, 97042), (242, 78997), (394, 48521), (401, 47674), (802, 23837), (2167, 8822), (4334, 4411)]