19400121

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2909}}^1$

素因数の和:2950

約数の個数: 32

約数和(自身を含む): 32592000

約数和(自身を除く): 13191879

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 2223, 2909, 6669, 8727, 26181, 37817, 55271, 78543, 113451, 165813, 340353, 497439, 718523, 1021059, 1492317, 2155569, 6466707, 19400121]

約数ペア:

[(1, 19400121), (3, 6466707), (9, 2155569), (13, 1492317), (19, 1021059), (27, 718523), (39, 497439), (57, 340353), (117, 165813), (171, 113451), (247, 78543), (351, 55271), (513, 37817), (741, 26181), (2223, 8727), (2909, 6669)]