257631039

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{31771}}^1$

素因数の和:31847

約数の個数: 24

約数和(自身を含む): 401470992

約数和(自身を除く): 143839953

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2703, 8109, 31771, 95313, 285939, 540107, 1620321, 1683863, 4860963, 5051589, 15154767, 28625671, 85877013, 257631039]

約数ペア:

[(1, 257631039), (3, 85877013), (9, 28625671), (17, 15154767), (51, 5051589), (53, 4860963), (153, 1683863), (159, 1620321), (477, 540107), (901, 285939), (2703, 95313), (8109, 31771)]