21855939

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{5449}}^1$

素因数の和:5650

約数の個数: 16

約数和(自身を含む): 33484800

約数和(自身を除く): 11628861

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 5449, 16347, 38143, 114429, 1040759, 3122277, 7285313, 21855939]

約数ペア:

[(1, 21855939), (3, 7285313), (7, 3122277), (21, 1040759), (191, 114429), (573, 38143), (1337, 16347), (4011, 5449)]