18998979

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{929}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 26917920

約数和(自身を除く): 7918941

約数列:

[1, 3, 17, 51, 401, 929, 1203, 2787, 6817, 15793, 20451, 47379, 372529, 1117587, 6332993, 18998979]

約数ペア:

[(1, 18998979), (3, 6332993), (17, 1117587), (51, 372529), (401, 47379), (929, 20451), (1203, 15793), (2787, 6817)]