20906366978

素因数分解:

$2^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{953}}^1\times {\mathrm{3947}}^1$

素因数の和:5306

約数の個数: 32

約数和(自身を含む): 35976576384

約数和(自身を除く): 15070209406

約数列:

[1, 2, 7, 14, 397, 794, 953, 1906, 2779, 3947, 5558, 6671, 7894, 13342, 27629, 55258, 378341, 756682, 1566959, 2648387, 3133918, 3761491, 5296774, 7522982, 10968713, 21937426, 26330437, 52660874, 1493311927, 2986623854, 10453183489, 20906366978]

約数ペア:

[(1, 20906366978), (2, 10453183489), (7, 2986623854), (14, 1493311927), (397, 52660874), (794, 26330437), (953, 21937426), (1906, 10968713), (2779, 7522982), (3947, 5296774), (5558, 3761491), (6671, 3133918), (7894, 2648387), (13342, 1566959), (27629, 756682), (55258, 378341)]