18937475

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 24427008

約数和(自身を除く): 5489533

約数列:

[1, 5, 25, 47, 71, 227, 235, 355, 1135, 1175, 1775, 3337, 5675, 10669, 16117, 16685, 53345, 80585, 83425, 266725, 402925, 757499, 3787495, 18937475]

約数ペア:

[(1, 18937475), (5, 3787495), (25, 757499), (47, 402925), (71, 266725), (227, 83425), (235, 80585), (355, 53345), (1135, 16685), (1175, 16117), (1775, 10669), (3337, 5675)]