21553888

素因数分解:

$2^5\times {\mathrm{661}}^1\times {\mathrm{1019}}^1$

素因数の和:1690

約数の個数: 24

約数和(自身を含む): 42540120

約数和(自身を除く): 20986232

約数列:

[1, 2, 4, 8, 16, 32, 661, 1019, 1322, 2038, 2644, 4076, 5288, 8152, 10576, 16304, 21152, 32608, 673559, 1347118, 2694236, 5388472, 10776944, 21553888]

約数ペア:

[(1, 21553888), (2, 10776944), (4, 5388472), (8, 2694236), (16, 1347118), (32, 673559), (661, 32608), (1019, 21152), (1322, 16304), (2038, 10576), (2644, 8152), (4076, 5288)]