19405789

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{317}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 22277808

約数和(自身を除く): 2872019

約数列:

[1, 13, 17, 221, 277, 317, 3601, 4121, 4709, 5389, 61217, 70057, 87809, 1141517, 1492753, 19405789]

約数ペア:

[(1, 19405789), (13, 1492753), (17, 1141517), (221, 87809), (277, 70057), (317, 61217), (3601, 5389), (4121, 4709)]