81243617

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{127541}}^1$

素因数の和:127568

約数の個数: 12

約数和(自身を含む): 101778516

約数和(自身を除く): 20534899

約数列:

[1, 7, 13, 49, 91, 637, 127541, 892787, 1658033, 6249509, 11606231, 81243617]

約数ペア:

[(1, 81243617), (7, 11606231), (13, 6249509), (49, 1658033), (91, 892787), (637, 127541)]