20987036

素因数分解:

$2^2\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1031}}^1$

素因数の和:1769

約数の個数: 24

約数和(自身を含む): 42072576

約数和(自身を除く): 21085540

約数列:

[1, 2, 4, 7, 14, 28, 727, 1031, 1454, 2062, 2908, 4124, 5089, 7217, 10178, 14434, 20356, 28868, 749537, 1499074, 2998148, 5246759, 10493518, 20987036]

約数ペア:

[(1, 20987036), (2, 10493518), (4, 5246759), (7, 2998148), (14, 1499074), (28, 749537), (727, 28868), (1031, 20356), (1454, 14434), (2062, 10178), (2908, 7217), (4124, 5089)]