20817435

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81637}}^1$

素因数の和:81662

約数の個数: 16

約数和(自身を含む): 35267616

約数和(自身を除く): 14450181

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81637, 244911, 408185, 1224555, 1387829, 4163487, 6939145, 20817435]

約数ペア:

[(1, 20817435), (3, 6939145), (5, 4163487), (15, 1387829), (17, 1224555), (51, 408185), (85, 244911), (255, 81637)]