20392029

素因数分解:

$3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1871}}^1$

素因数の和:2057

約数の個数: 24

約数和(自身を含む): 33875712

約数和(自身を除く): 13483683

約数列:

[1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 1871, 3633, 5613, 10899, 13097, 16839, 39291, 117873, 323683, 971049, 2265781, 2913147, 6797343, 20392029]

約数ペア:

[(1, 20392029), (3, 6797343), (7, 2913147), (9, 2265781), (21, 971049), (63, 323683), (173, 117873), (519, 39291), (1211, 16839), (1557, 13097), (1871, 10899), (3633, 5613)]