18914945

素因数分解:

$5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1951}}^1$

素因数の和:2240

約数の個数: 16

約数和(自身を含む): 26047488

約数和(自身を除く): 7132543

約数列:

[1, 5, 7, 35, 277, 1385, 1939, 1951, 9695, 9755, 13657, 68285, 540427, 2702135, 3782989, 18914945]

約数ペア:

[(1, 18914945), (5, 3782989), (7, 2702135), (35, 540427), (277, 68285), (1385, 13657), (1939, 9755), (1951, 9695)]