81457579

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1\times {\mathrm{1009}}^1$

素因数の和:1642

約数の個数: 16

約数和(自身を含む): 98252800

約数和(自身を除く): 16795221

約数列:

[1, 7, 19, 133, 607, 1009, 4249, 7063, 11533, 19171, 80731, 134197, 612463, 4287241, 11636797, 81457579]

約数ペア:

[(1, 81457579), (7, 11636797), (19, 4287241), (133, 612463), (607, 134197), (1009, 80731), (4249, 19171), (7063, 11533)]