21537716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{5347}}^1$

素因数の和:5423

約数の個数: 24

約数和(自身を含む): 40430880

約数和(自身を除く): 18893164

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 2014, 4028, 5347, 10694, 21388, 101593, 203186, 283391, 406372, 566782, 1133564, 5384429, 10768858, 21537716]

約数ペア:

[(1, 21537716), (2, 10768858), (4, 5384429), (19, 1133564), (38, 566782), (53, 406372), (76, 283391), (106, 203186), (212, 101593), (1007, 21388), (2014, 10694), (4028, 5347)]