257890239

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{6653}}^1$

素因数の和:6791

約数の個数: 24

約数和(自身を含む): 384068880

約数和(自身を除く): 126178641

約数列:

[1, 3, 9, 59, 73, 177, 219, 531, 657, 4307, 6653, 12921, 19959, 38763, 59877, 392527, 485669, 1177581, 1457007, 3532743, 4371021, 28654471, 85963413, 257890239]

約数ペア:

[(1, 257890239), (3, 85963413), (9, 28654471), (59, 4371021), (73, 3532743), (177, 1457007), (219, 1177581), (531, 485669), (657, 392527), (4307, 59877), (6653, 38763), (12921, 19959)]