28072149

素因数分解:

$3^1\times 7^3\times {\mathrm{27281}}^1$

素因数の和:27305

約数の個数: 16

約数和(自身を含む): 43651200

約数和(自身を除く): 15579051

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 27281, 81843, 190967, 572901, 1336769, 4010307, 9357383, 28072149]

約数ペア:

[(1, 28072149), (3, 9357383), (7, 4010307), (21, 1336769), (49, 572901), (147, 190967), (343, 81843), (1029, 27281)]