20838049154

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{64153}}^1$

素因数の和:64243

約数の個数: 36

約数和(自身を含む): 34974002178

約数和(自身を除く): 14135953024

約数列:

[1, 2, 13, 26, 31, 62, 169, 338, 403, 806, 961, 1922, 5239, 10478, 12493, 24986, 64153, 128306, 162409, 324818, 833989, 1667978, 1988743, 3977486, 10841857, 21683714, 25853659, 51707318, 61651033, 123302066, 336097567, 672195134, 801463429, 1602926858, 10419024577, 20838049154]

約数ペア:

[(1, 20838049154), (2, 10419024577), (13, 1602926858), (26, 801463429), (31, 672195134), (62, 336097567), (169, 123302066), (338, 61651033), (403, 51707318), (806, 25853659), (961, 21683714), (1922, 10841857), (5239, 3977486), (10478, 1988743), (12493, 1667978), (24986, 833989), (64153, 324818), (128306, 162409)]