21804066465

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85506143}}^1$

素因数の和:85506168

約数の個数: 16

約数和(自身を含む): 36938654208

約数和(自身を除く): 15134587743

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85506143, 256518429, 427530715, 1282592145, 1453604431, 4360813293, 7268022155, 21804066465]

約数ペア:

[(1, 21804066465), (3, 7268022155), (5, 4360813293), (15, 1453604431), (17, 1282592145), (51, 427530715), (85, 256518429), (255, 85506143)]