18785289

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 27232128

約数和(自身を除く): 8446839

約数列:

[1, 3, 17, 47, 51, 141, 289, 461, 799, 867, 1383, 2397, 7837, 13583, 21667, 23511, 40749, 65001, 133229, 368339, 399687, 1105017, 6261763, 18785289]

約数ペア:

[(1, 18785289), (3, 6261763), (17, 1105017), (47, 399687), (51, 368339), (141, 133229), (289, 65001), (461, 40749), (799, 23511), (867, 21667), (1383, 13583), (2397, 7837)]