28909923

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2141}}^1$

素因数の和:2794

約数の個数: 16

約数和(自身を含む): 44142336

約数和(自身を除く): 15232413

約数列:

[1, 3, 7, 21, 643, 1929, 2141, 4501, 6423, 13503, 14987, 44961, 1376663, 4129989, 9636641, 28909923]

約数ペア:

[(1, 28909923), (3, 9636641), (7, 4129989), (21, 1376663), (643, 44961), (1929, 14987), (2141, 13503), (4501, 6423)]