491190561

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{129023}}^1$

素因数の和:129082

約数の個数: 20

約数和(自身を含む): 749371392

約数和(自身を除く): 258180831

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 129023, 387069, 1161207, 3483621, 6064081, 10450863, 18192243, 54576729, 163730187, 491190561]

約数ペア:

[(1, 491190561), (3, 163730187), (9, 54576729), (27, 18192243), (47, 10450863), (81, 6064081), (141, 3483621), (423, 1161207), (1269, 387069), (3807, 129023)]