20287184

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9679}}^1$

素因数の和:9818

約数の個数: 20

約数和(自身を含む): 39610560

約数和(自身を除く): 19323376

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9679, 19358, 38716, 77432, 154864, 1267949, 2535898, 5071796, 10143592, 20287184]

約数ペア:

[(1, 20287184), (2, 10143592), (4, 5071796), (8, 2535898), (16, 1267949), (131, 154864), (262, 77432), (524, 38716), (1048, 19358), (2096, 9679)]