21654724

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1451}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 47811456

約数和(自身を除く): 26156732

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 1451, 2132, 2902, 3731, 5804, 7462, 10157, 14924, 18863, 20314, 37726, 40628, 59491, 75452, 118982, 132041, 237964, 264082, 416437, 528164, 773383, 832874, 1546766, 1665748, 3093532, 5413681, 10827362, 21654724]

約数ペア:

[(1, 21654724), (2, 10827362), (4, 5413681), (7, 3093532), (13, 1665748), (14, 1546766), (26, 832874), (28, 773383), (41, 528164), (52, 416437), (82, 264082), (91, 237964), (164, 132041), (182, 118982), (287, 75452), (364, 59491), (533, 40628), (574, 37726), (1066, 20314), (1148, 18863), (1451, 14924), (2132, 10157), (2902, 7462), (3731, 5804)]