80921169

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{27329}}^1$

素因数の和:27389

約数の個数: 24

約数和(自身を含む): 136431360

約数和(自身を除く): 55510191

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 27329, 81987, 191303, 245961, 573909, 1284463, 1721727, 3853389, 8991241, 11560167, 26973723, 80921169]

約数ペア:

[(1, 80921169), (3, 26973723), (7, 11560167), (9, 8991241), (21, 3853389), (47, 1721727), (63, 1284463), (141, 573909), (329, 245961), (423, 191303), (987, 81987), (2961, 27329)]