18984285

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9811}}^1$

素因数の和:9865

約数の個数: 24

約数和(自身を含む): 33674784

約数和(自身を除く): 14690499

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9811, 29433, 49055, 88299, 147165, 421873, 441495, 1265619, 2109365, 3796857, 6328095, 18984285]

約数ペア:

[(1, 18984285), (3, 6328095), (5, 3796857), (9, 2109365), (15, 1265619), (43, 441495), (45, 421873), (129, 147165), (215, 88299), (387, 49055), (645, 29433), (1935, 9811)]