28204821

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{14713}}^1$

素因数の和:14793

約数の個数: 16

約数和(自身を含む): 42376320

約数和(自身を除く): 14171499

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 14713, 44139, 132417, 397251, 1044623, 3133869, 9401607, 28204821]

約数ペア:

[(1, 28204821), (3, 9401607), (9, 3133869), (27, 1044623), (71, 397251), (213, 132417), (639, 44139), (1917, 14713)]