28505721

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1\times {\mathrm{443}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 38681280

約数和(自身を除く): 10175559

約数列:

[1, 3, 89, 241, 267, 443, 723, 1329, 21449, 39427, 64347, 106763, 118281, 320289, 9501907, 28505721]

約数ペア:

[(1, 28505721), (3, 9501907), (89, 320289), (241, 118281), (267, 106763), (443, 64347), (723, 39427), (1329, 21449)]