19930989

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{6469}}^1$

素因数の和:6564

約数の個数: 16

約数和(自身を含む): 28985600

約数和(自身を除く): 9054611

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 6469, 19407, 84097, 252291, 511051, 1533153, 6643663, 19930989]

約数ペア:

[(1, 19930989), (3, 6643663), (13, 1533153), (39, 511051), (79, 252291), (237, 84097), (1027, 19407), (3081, 6469)]