20191745

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{4211}}^1$

素因数の和:4360

約数の個数: 16

約数和(自身を含む): 27900288

約数和(自身を除く): 7708543

約数列:

[1, 5, 7, 35, 137, 685, 959, 4211, 4795, 21055, 29477, 147385, 576907, 2884535, 4038349, 20191745]

約数ペア:

[(1, 20191745), (5, 4038349), (7, 2884535), (35, 576907), (137, 147385), (685, 29477), (959, 21055), (4211, 4795)]