20920743

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 31337280

約数和(自身を除く): 10416537

約数列:

[1, 3, 9, 53, 61, 159, 183, 477, 549, 719, 2157, 3233, 6471, 9699, 29097, 38107, 43859, 114321, 131577, 342963, 394731, 2324527, 6973581, 20920743]

約数ペア:

[(1, 20920743), (3, 6973581), (9, 2324527), (53, 394731), (61, 342963), (159, 131577), (183, 114321), (477, 43859), (549, 38107), (719, 29097), (2157, 9699), (3233, 6471)]