19376368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1237}}^1$

素因数の和:1345

約数の個数: 40

約数和(自身を含む): 41448240

約数和(自身を除く): 22071872

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 89, 176, 178, 356, 712, 979, 1237, 1424, 1958, 2474, 3916, 4948, 7832, 9896, 13607, 15664, 19792, 27214, 54428, 108856, 110093, 217712, 220186, 440372, 880744, 1211023, 1761488, 2422046, 4844092, 9688184, 19376368]

約数ペア:

[(1, 19376368), (2, 9688184), (4, 4844092), (8, 2422046), (11, 1761488), (16, 1211023), (22, 880744), (44, 440372), (88, 220186), (89, 217712), (176, 110093), (178, 108856), (356, 54428), (712, 27214), (979, 19792), (1237, 15664), (1424, 13607), (1958, 9896), (2474, 7832), (3916, 4948)]