20989849671

素因数分解:

$3^2\times 7^3\times {\mathrm{6799433}}^1$

素因数の和:6799460

約数の個数: 24

約数和(自身を含む): 35357056800

約数和(自身を除く): 14367207129

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6799433, 20398299, 47596031, 61194897, 142788093, 333172217, 428364279, 999516651, 2332205519, 2998549953, 6996616557, 20989849671]

約数ペア:

[(1, 20989849671), (3, 6996616557), (7, 2998549953), (9, 2332205519), (21, 999516651), (49, 428364279), (63, 333172217), (147, 142788093), (343, 61194897), (441, 47596031), (1029, 20398299), (3087, 6799433)]