20218572868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12542539}}^1$

素因数の和:12542587

約数の個数: 24

約数和(自身を含む): 39333405440

約数和(自身を除く): 19114832572

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12542539, 25085078, 50170156, 163053007, 326106014, 388818709, 652212028, 777637418, 1555274836, 5054643217, 10109286434, 20218572868]

約数ペア:

[(1, 20218572868), (2, 10109286434), (4, 5054643217), (13, 1555274836), (26, 777637418), (31, 652212028), (52, 388818709), (62, 326106014), (124, 163053007), (403, 50170156), (806, 25085078), (1612, 12542539)]