18681435

素因数分解:

$3^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{239}}^1$

素因数の和:449

約数の個数: 40

約数和(自身を含む): 33802560

約数和(自身を除く): 15121125

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 193, 239, 405, 579, 717, 965, 1195, 1737, 2151, 2895, 3585, 5211, 6453, 8685, 10755, 15633, 19359, 26055, 32265, 46127, 78165, 96795, 138381, 230635, 415143, 691905, 1245429, 2075715, 3736287, 6227145, 18681435]

約数ペア:

[(1, 18681435), (3, 6227145), (5, 3736287), (9, 2075715), (15, 1245429), (27, 691905), (45, 415143), (81, 230635), (135, 138381), (193, 96795), (239, 78165), (405, 46127), (579, 32265), (717, 26055), (965, 19359), (1195, 15633), (1737, 10755), (2151, 8685), (2895, 6453), (3585, 5211)]