9815985

素因数分解:

$3^6\times 5^1\times {\mathrm{2693}}^1$

素因数の和:2716

約数の個数: 28

約数和(自身を含む): 17667252

約数和(自身を除く): 7851267

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 2693, 3645, 8079, 13465, 24237, 40395, 72711, 121185, 218133, 363555, 654399, 1090665, 1963197, 3271995, 9815985]

約数ペア:

[(1, 9815985), (3, 3271995), (5, 1963197), (9, 1090665), (15, 654399), (27, 363555), (45, 218133), (81, 121185), (135, 72711), (243, 40395), (405, 24237), (729, 13465), (1215, 8079), (2693, 3645)]