28427391

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{1879}}^1$

素因数の和:1967

約数の個数: 18

約数和(自身を含む): 42110120

約数和(自身を除く): 13682729

約数列:

[1, 3, 9, 41, 123, 369, 1681, 1879, 5043, 5637, 15129, 16911, 77039, 231117, 693351, 3158599, 9475797, 28427391]

約数ペア:

[(1, 28427391), (3, 9475797), (9, 3158599), (41, 693351), (123, 231117), (369, 77039), (1681, 16911), (1879, 15129), (5043, 5637)]