28907711

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 34636800

約数和(自身を除く): 5729089

約数列:

[1, 7, 23, 161, 409, 439, 2863, 3073, 9407, 10097, 65849, 70679, 179551, 1256857, 4129673, 28907711]

約数ペア:

[(1, 28907711), (7, 4129673), (23, 1256857), (161, 179551), (409, 70679), (439, 65849), (2863, 10097), (3073, 9407)]