28613943

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{8807}}^1$

素因数の和:8851

約数の個数: 18

約数和(自身を含む): 43626024

約数和(自身を除く): 15012081

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 8807, 26421, 79263, 167333, 501999, 1505997, 3179327, 9537981, 28613943]

約数ペア:

[(1, 28613943), (3, 9537981), (9, 3179327), (19, 1505997), (57, 501999), (171, 167333), (361, 79263), (1083, 26421), (3249, 8807)]