215996985

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{282349}}^1$

素因数の和:282377

約数の個数: 24

約数和(自身を含む): 396419400

約数和(自身を除く): 180422415

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 282349, 847047, 1411745, 2541141, 4235235, 4799933, 12705705, 14399799, 23999665, 43199397, 71998995, 215996985]

約数ペア:

[(1, 215996985), (3, 71998995), (5, 43199397), (9, 23999665), (15, 14399799), (17, 12705705), (45, 4799933), (51, 4235235), (85, 2541141), (153, 1411745), (255, 847047), (765, 282349)]