87312561

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{34939}}^1$

素因数の和:34973

約数の個数: 24

約数和(自身を含む): 143393760

約数和(自身を除く): 56081199

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 34939, 104817, 244573, 593963, 733719, 1712011, 1781889, 4157741, 5136033, 12473223, 29104187, 87312561]

約数ペア:

[(1, 87312561), (3, 29104187), (7, 12473223), (17, 5136033), (21, 4157741), (49, 1781889), (51, 1712011), (119, 733719), (147, 593963), (357, 244573), (833, 104817), (2499, 34939)]