28759281

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1\times {\mathrm{719}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 39168000

約数和(自身を除く): 10408719

約数列:

[1, 3, 67, 199, 201, 597, 719, 2157, 13333, 39999, 48173, 143081, 144519, 429243, 9586427, 28759281]

約数ペア:

[(1, 28759281), (3, 9586427), (67, 429243), (199, 144519), (201, 143081), (597, 48173), (719, 39999), (2157, 13333)]