257618817

素因数分解:

$3^2\times {\mathrm{229}}^1\times {\mathrm{239}}^1\times {\mathrm{523}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 376022400

約数和(自身を除く): 118403583

約数列:

[1, 3, 9, 229, 239, 523, 687, 717, 1569, 2061, 2151, 4707, 54731, 119767, 124997, 164193, 359301, 374991, 492579, 1077903, 1124973, 28624313, 85872939, 257618817]

約数ペア:

[(1, 257618817), (3, 85872939), (9, 28624313), (229, 1124973), (239, 1077903), (523, 492579), (687, 374991), (717, 359301), (1569, 164193), (2061, 124997), (2151, 119767), (4707, 54731)]