20499128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3719}}^1$

素因数の和:3791

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 21685672

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3719, 5512, 7438, 14876, 29752, 48347, 96694, 193388, 197107, 386776, 394214, 788428, 1576856, 2562391, 5124782, 10249564, 20499128]

約数ペア:

[(1, 20499128), (2, 10249564), (4, 5124782), (8, 2562391), (13, 1576856), (26, 788428), (52, 394214), (53, 386776), (104, 197107), (106, 193388), (212, 96694), (424, 48347), (689, 29752), (1378, 14876), (2756, 7438), (3719, 5512)]