21568329

素因数分解:

$3^3\times {\mathrm{193}}^1\times {\mathrm{4139}}^1$

素因数の和:4341

約数の個数: 16

約数和(自身を含む): 32126400

約数和(自身を除く): 10558071

約数列:

[1, 3, 9, 27, 193, 579, 1737, 4139, 5211, 12417, 37251, 111753, 798827, 2396481, 7189443, 21568329]

約数ペア:

[(1, 21568329), (3, 7189443), (9, 2396481), (27, 798827), (193, 111753), (579, 37251), (1737, 12417), (4139, 5211)]