19554416

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7591}}^1$

素因数の和:7629

約数の個数: 40

約数和(自身を含む): 45187584

約数和(自身を除く): 25633168

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 7591, 15182, 30364, 53137, 60728, 106274, 121456, 174593, 212548, 349186, 425096, 698372, 850192, 1222151, 1396744, 2444302, 2793488, 4888604, 9777208, 19554416]

約数ペア:

[(1, 19554416), (2, 9777208), (4, 4888604), (7, 2793488), (8, 2444302), (14, 1396744), (16, 1222151), (23, 850192), (28, 698372), (46, 425096), (56, 349186), (92, 212548), (112, 174593), (161, 121456), (184, 106274), (322, 60728), (368, 53137), (644, 30364), (1288, 15182), (2576, 7591)]