21290361025

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1\times {\mathrm{863}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 27619232256

約数和(自身を除く): 6328871231

約数列:

[1, 5, 25, 43, 53, 215, 265, 433, 863, 1075, 1325, 2165, 2279, 4315, 10825, 11395, 18619, 21575, 22949, 37109, 45739, 56975, 93095, 114745, 185545, 228695, 373679, 465475, 573725, 927725, 986807, 1143475, 1868395, 1966777, 4934035, 9341975, 9833885, 16068197, 19804987, 24670175, 49169425, 80340985, 99024935, 401704925, 495124675, 851614441, 4258072205, 21290361025]

約数ペア:

[(1, 21290361025), (5, 4258072205), (25, 851614441), (43, 495124675), (53, 401704925), (215, 99024935), (265, 80340985), (433, 49169425), (863, 24670175), (1075, 19804987), (1325, 16068197), (2165, 9833885), (2279, 9341975), (4315, 4934035), (10825, 1966777), (11395, 1868395), (18619, 1143475), (21575, 986807), (22949, 927725), (37109, 573725), (45739, 465475), (56975, 373679), (93095, 228695), (114745, 185545)]