18976165

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 26128008

約数和(自身を除く): 7151843

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1321, 2873, 6605, 14365, 17173, 22457, 85865, 112285, 223249, 291941, 1116245, 1459705, 3795233, 18976165]

約数ペア:

[(1, 18976165), (5, 3795233), (13, 1459705), (17, 1116245), (65, 291941), (85, 223249), (169, 112285), (221, 85865), (845, 22457), (1105, 17173), (1321, 14365), (2873, 6605)]