21787444828

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{1999}}^1\times {\mathrm{19889}}^1$

素因数の和:22029

約数の個数: 24

約数和(自身を含む): 38427480000

約数和(自身を除く): 16640035172

約数列:

[1, 2, 4, 137, 274, 548, 1999, 3998, 7996, 19889, 39778, 79556, 273863, 547726, 1095452, 2724793, 5449586, 10899172, 39758111, 79516222, 159032444, 5446861207, 10893722414, 21787444828]

約数ペア:

[(1, 21787444828), (2, 10893722414), (4, 5446861207), (137, 159032444), (274, 79516222), (548, 39758111), (1999, 10899172), (3998, 5449586), (7996, 2724793), (19889, 1095452), (39778, 547726), (79556, 273863)]