20400105

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123637}}^1$

素因数の和:123656

約数の個数: 16

約数和(自身を含む): 35607744

約数和(自身を除く): 15207639

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 123637, 370911, 618185, 1360007, 1854555, 4080021, 6800035, 20400105]

約数ペア:

[(1, 20400105), (3, 6800035), (5, 4080021), (11, 1854555), (15, 1360007), (33, 618185), (55, 370911), (165, 123637)]