21553744

素因数分解:

$2^4\times {\mathrm{149}}^1\times {\mathrm{9041}}^1$

素因数の和:9198

約数の個数: 20

約数和(自身を含む): 42045300

約数和(自身を除く): 20491556

約数列:

[1, 2, 4, 8, 16, 149, 298, 596, 1192, 2384, 9041, 18082, 36164, 72328, 144656, 1347109, 2694218, 5388436, 10776872, 21553744]

約数ペア:

[(1, 21553744), (2, 10776872), (4, 5388436), (8, 2694218), (16, 1347109), (149, 144656), (298, 72328), (596, 36164), (1192, 18082), (2384, 9041)]