20436885

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64879}}^1$

素因数の和:64897

約数の個数: 24

約数和(自身を含む): 40485120

約数和(自身を除く): 20048235

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64879, 194637, 324395, 454153, 583911, 973185, 1362459, 2270765, 2919555, 4087377, 6812295, 20436885]

約数ペア:

[(1, 20436885), (3, 6812295), (5, 4087377), (7, 2919555), (9, 2270765), (15, 1362459), (21, 973185), (35, 583911), (45, 454153), (63, 324395), (105, 194637), (315, 64879)]