64871919

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{14503}}^1$

素因数の和:14587

約数の個数: 24

約数和(自身を含む): 108605952

約数和(自身を除く): 43734033

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 14503, 43509, 101521, 130527, 304563, 913689, 1029713, 3089139, 7207991, 9267417, 21623973, 64871919]

約数ペア:

[(1, 64871919), (3, 21623973), (7, 9267417), (9, 7207991), (21, 3089139), (63, 1029713), (71, 913689), (213, 304563), (497, 130527), (639, 101521), (1491, 43509), (4473, 14503)]