19875193

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 22861440

約数和(自身を除く): 2986247

約数列:

[1, 13, 17, 139, 221, 647, 1807, 2363, 8411, 10999, 30719, 89933, 142987, 1169129, 1528861, 19875193]

約数ペア:

[(1, 19875193), (13, 1528861), (17, 1169129), (139, 142987), (221, 89933), (647, 30719), (1807, 10999), (2363, 8411)]