21909939

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{479}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 29798400

約数和(自身を除く): 7888461

約数列:

[1, 3, 79, 193, 237, 479, 579, 1437, 15247, 37841, 45741, 92447, 113523, 277341, 7303313, 21909939]

約数ペア:

[(1, 21909939), (3, 7303313), (79, 277341), (193, 113523), (237, 92447), (479, 45741), (579, 37841), (1437, 15247)]