19807017

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{607}}^1$

素因数の和:832

約数の個数: 16

約数和(自身を含む): 26995200

約数和(自身を除く): 7188183

約数列:

[1, 3, 73, 149, 219, 447, 607, 1821, 10877, 32631, 44311, 90443, 132933, 271329, 6602339, 19807017]

約数ペア:

[(1, 19807017), (3, 6602339), (73, 271329), (149, 132933), (219, 90443), (447, 44311), (607, 32631), (1821, 10877)]