28494261

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20693}}^1$

素因数の和:20722

約数の個数: 20

約数和(自身を含む): 45071532

約数和(自身を除く): 16577271

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20693, 62079, 186237, 351781, 558711, 1055343, 1676133, 3166029, 9498087, 28494261]

約数ペア:

[(1, 28494261), (3, 9498087), (9, 3166029), (17, 1676133), (27, 1055343), (51, 558711), (81, 351781), (153, 186237), (459, 62079), (1377, 20693)]