21668055

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{11027}}^1$

素因数の和:11166

約数の個数: 16

約数和(自身を含む): 34936704

約数和(自身を除く): 13268649

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 11027, 33081, 55135, 165405, 1444537, 4333611, 7222685, 21668055]

約数ペア:

[(1, 21668055), (3, 7222685), (5, 4333611), (15, 1444537), (131, 165405), (393, 55135), (655, 33081), (1965, 11027)]