12981885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{123637}}^1$

素因数の和:123652

約数の個数: 16

約数和(自身を含む): 23738496

約数和(自身を除く): 10756611

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 123637, 370911, 618185, 865459, 1854555, 2596377, 4327295, 12981885]

約数ペア:

[(1, 12981885), (3, 4327295), (5, 2596377), (7, 1854555), (15, 865459), (21, 618185), (35, 370911), (105, 123637)]