18882995

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 23113728

約数和(自身を除く): 4230733

約数列:

[1, 5, 127, 131, 227, 635, 655, 1135, 16637, 28829, 29737, 83185, 144145, 148685, 3776599, 18882995]

約数ペア:

[(1, 18882995), (5, 3776599), (127, 148685), (131, 144145), (227, 83185), (635, 29737), (655, 28829), (1135, 16637)]