20603778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8521}}^1$

素因数の和:8570

約数の個数: 32

約数和(自身を含む): 45814272

約数和(自身を除く): 25210494

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8521, 17042, 25563, 51126, 110773, 221546, 264151, 332319, 528302, 664638, 792453, 1584906, 3433963, 6867926, 10301889, 20603778]

約数ペア:

[(1, 20603778), (2, 10301889), (3, 6867926), (6, 3433963), (13, 1584906), (26, 792453), (31, 664638), (39, 528302), (62, 332319), (78, 264151), (93, 221546), (186, 110773), (403, 51126), (806, 25563), (1209, 17042), (2418, 8521)]