21089288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{653}}^1$

素因数の和:1037

約数の個数: 32

約数和(自身を含む): 43320960

約数和(自身を除く): 22231672

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 367, 653, 734, 1306, 1468, 2612, 2936, 4037, 5224, 7183, 8074, 14366, 16148, 28732, 32296, 57464, 239651, 479302, 958604, 1917208, 2636161, 5272322, 10544644, 21089288]

約数ペア:

[(1, 21089288), (2, 10544644), (4, 5272322), (8, 2636161), (11, 1917208), (22, 958604), (44, 479302), (88, 239651), (367, 57464), (653, 32296), (734, 28732), (1306, 16148), (1468, 14366), (2612, 8074), (2936, 7183), (4037, 5224)]