21764835

素因数分解:

$3^3\times 5^1\times {\mathrm{161221}}^1$

素因数の和:161235

約数の個数: 16

約数和(自身を含む): 38693280

約数和(自身を除く): 16928445

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 161221, 483663, 806105, 1450989, 2418315, 4352967, 7254945, 21764835]

約数ペア:

[(1, 21764835), (3, 7254945), (5, 4352967), (9, 2418315), (15, 1450989), (27, 806105), (45, 483663), (135, 161221)]