19809689

素因数分解:

${\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:296

約数の個数: 16

約数和(自身を含む): 21147456

約数和(自身を除く): 1337767

約数列:

[1, 37, 61, 67, 131, 2257, 2479, 4087, 4847, 7991, 8777, 151219, 295667, 324749, 535397, 19809689]

約数ペア:

[(1, 19809689), (37, 535397), (61, 324749), (67, 295667), (131, 151219), (2257, 8777), (2479, 7991), (4087, 4847)]