161921956

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{3001}}^1$

素因数の和:3100

約数の個数: 48

約数和(自身を含む): 338913792

約数和(自身を除く): 176991836

約数列:

[1, 2, 4, 7, 14, 28, 41, 47, 82, 94, 164, 188, 287, 329, 574, 658, 1148, 1316, 1927, 3001, 3854, 6002, 7708, 12004, 13489, 21007, 26978, 42014, 53956, 84028, 123041, 141047, 246082, 282094, 492164, 564188, 861287, 987329, 1722574, 1974658, 3445148, 3949316, 5782927, 11565854, 23131708, 40480489, 80960978, 161921956]

約数ペア:

[(1, 161921956), (2, 80960978), (4, 40480489), (7, 23131708), (14, 11565854), (28, 5782927), (41, 3949316), (47, 3445148), (82, 1974658), (94, 1722574), (164, 987329), (188, 861287), (287, 564188), (329, 492164), (574, 282094), (658, 246082), (1148, 141047), (1316, 123041), (1927, 84028), (3001, 53956), (3854, 42014), (6002, 26978), (7708, 21007), (12004, 13489)]