20730591

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2591}}^1$

素因数の和:2731

約数の個数: 24

約数和(自身を含む): 34504704

約数和(自身を除く): 13774113

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2591, 2667, 7773, 8001, 18137, 23319, 54411, 163233, 329057, 987171, 2303399, 2961513, 6910197, 20730591]

約数ペア:

[(1, 20730591), (3, 6910197), (7, 2961513), (9, 2303399), (21, 987171), (63, 329057), (127, 163233), (381, 54411), (889, 23319), (1143, 18137), (2591, 8001), (2667, 7773)]