20717144

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19471}}^1$

素因数の和:19503

約数の個数: 32

約数和(自身を含む): 46732800

約数和(自身を除く): 26015656

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19471, 38942, 77884, 136297, 155768, 272594, 369949, 545188, 739898, 1090376, 1479796, 2589643, 2959592, 5179286, 10358572, 20717144]

約数ペア:

[(1, 20717144), (2, 10358572), (4, 5179286), (7, 2959592), (8, 2589643), (14, 1479796), (19, 1090376), (28, 739898), (38, 545188), (56, 369949), (76, 272594), (133, 155768), (152, 136297), (266, 77884), (532, 38942), (1064, 19471)]