21555008

素因数分解:

$2^6\times {\mathrm{139}}^1\times {\mathrm{2423}}^1$

素因数の和:2574

約数の個数: 28

約数和(自身を含む): 43098720

約数和(自身を除く): 21543712

約数列:

[1, 2, 4, 8, 16, 32, 64, 139, 278, 556, 1112, 2224, 2423, 4448, 4846, 8896, 9692, 19384, 38768, 77536, 155072, 336797, 673594, 1347188, 2694376, 5388752, 10777504, 21555008]

約数ペア:

[(1, 21555008), (2, 10777504), (4, 5388752), (8, 2694376), (16, 1347188), (32, 673594), (64, 336797), (139, 155072), (278, 77536), (556, 38768), (1112, 19384), (2224, 9692), (2423, 8896), (4448, 4846)]