18081945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 36167040

約数和(自身を除く): 18085095

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 137, 315, 411, 419, 685, 959, 1233, 1257, 2055, 2095, 2877, 2933, 3771, 4795, 6165, 6285, 8631, 8799, 14385, 14665, 18855, 26397, 43155, 43995, 57403, 131985, 172209, 287015, 401821, 516627, 861045, 1205463, 2009105, 2583135, 3616389, 6027315, 18081945]

約数ペア:

[(1, 18081945), (3, 6027315), (5, 3616389), (7, 2583135), (9, 2009105), (15, 1205463), (21, 861045), (35, 516627), (45, 401821), (63, 287015), (105, 172209), (137, 131985), (315, 57403), (411, 43995), (419, 43155), (685, 26397), (959, 18855), (1233, 14665), (1257, 14385), (2055, 8799), (2095, 8631), (2877, 6285), (2933, 6165), (3771, 4795)]