20517008

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19139}}^1$

素因数の和:19214

約数の個数: 20

約数和(自身を含む): 40347120

約数和(自身を除く): 19830112

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19139, 38278, 76556, 153112, 306224, 1282313, 2564626, 5129252, 10258504, 20517008]

約数ペア:

[(1, 20517008), (2, 10258504), (4, 5129252), (8, 2564626), (16, 1282313), (67, 306224), (134, 153112), (268, 76556), (536, 38278), (1072, 19139)]