249488253

素因数分解:

$3^2\times 7^3\times {\mathrm{80819}}^1$

素因数の和:80846

約数の個数: 24

約数和(自身を含む): 420264000

約数和(自身を除く): 170775747

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 80819, 242457, 565733, 727371, 1697199, 3960131, 5091597, 11880393, 27720917, 35641179, 83162751, 249488253]

約数ペア:

[(1, 249488253), (3, 83162751), (7, 35641179), (9, 27720917), (21, 11880393), (49, 5091597), (63, 3960131), (147, 1697199), (343, 727371), (441, 565733), (1029, 242457), (3087, 80819)]