20392707

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 29609536

約数和(自身を除く): 9216829

約数列:

[1, 3, 17, 43, 51, 129, 289, 547, 731, 867, 1641, 2193, 9299, 12427, 23521, 27897, 37281, 70563, 158083, 399857, 474249, 1199571, 6797569, 20392707]

約数ペア:

[(1, 20392707), (3, 6797569), (17, 1199571), (43, 474249), (51, 399857), (129, 158083), (289, 70563), (547, 37281), (731, 27897), (867, 23521), (1641, 12427), (2193, 9299)]