28340289

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{44351}}^1$

素因数の和:44428

約数の個数: 12

約数和(自身を含む): 41513472

約数和(自身を除く): 13173183

約数列:

[1, 3, 9, 71, 213, 639, 44351, 133053, 399159, 3148921, 9446763, 28340289]

約数ペア:

[(1, 28340289), (3, 9446763), (9, 3148921), (71, 399159), (213, 133053), (639, 44351)]