81812619

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{25463}}^1$

素因数の和:25496

約数の個数: 32

約数和(自身を含む): 146672640

約数和(自身を除く): 64860021

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 25463, 76389, 178241, 229167, 432871, 534723, 687501, 1298613, 1604169, 3030097, 3895839, 4812507, 9090291, 11687517, 27270873, 81812619]

約数ペア:

[(1, 81812619), (3, 27270873), (7, 11687517), (9, 9090291), (17, 4812507), (21, 3895839), (27, 3030097), (51, 1604169), (63, 1298613), (119, 687501), (153, 534723), (189, 432871), (357, 229167), (459, 178241), (1071, 76389), (3213, 25463)]