31286817

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{22721}}^1$

素因数の和:22750

約数の個数: 20

約数和(自身を含む): 49488516

約数和(自身を除く): 18201699

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 22721, 68163, 204489, 386257, 613467, 1158771, 1840401, 3476313, 10428939, 31286817]

約数ペア:

[(1, 31286817), (3, 10428939), (9, 3476313), (17, 1840401), (27, 1158771), (51, 613467), (81, 386257), (153, 204489), (459, 68163), (1377, 22721)]