1389244

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 2561328

約数和(自身を除く): 1172084

約数列:

[1, 2, 4, 41, 43, 82, 86, 164, 172, 197, 394, 788, 1763, 3526, 7052, 8077, 8471, 16154, 16942, 32308, 33884, 347311, 694622, 1389244]

約数ペア:

[(1, 1389244), (2, 694622), (4, 347311), (41, 33884), (43, 32308), (82, 16942), (86, 16154), (164, 8471), (172, 8077), (197, 7052), (394, 3526), (788, 1763)]