199767561

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79939}}^1$

素因数の和:79973

約数の個数: 24

約数和(自身を含む): 328073760

約数和(自身を除く): 128306199

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 79939, 239817, 559573, 1358963, 1678719, 3917011, 4076889, 9512741, 11751033, 28538223, 66589187, 199767561]

約数ペア:

[(1, 199767561), (3, 66589187), (7, 28538223), (17, 11751033), (21, 9512741), (49, 4076889), (51, 3917011), (119, 1678719), (147, 1358963), (357, 559573), (833, 239817), (2499, 79939)]