20986533

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2377}}^1$

素因数の和:2498

約数の個数: 20

約数和(自身を含む): 31651180

約数和(自身を除く): 10664647

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2377, 2943, 7131, 8829, 21393, 64179, 192537, 259093, 777279, 2331837, 6995511, 20986533]

約数ペア:

[(1, 20986533), (3, 6995511), (9, 2331837), (27, 777279), (81, 259093), (109, 192537), (327, 64179), (981, 21393), (2377, 8829), (2943, 7131)]