257517003

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{571}}^1$

素因数の和:867

約数の個数: 32

約数和(自身を含む): 375598080

約数和(自身を除く): 118081077

約数列:

[1, 3, 17, 37, 51, 111, 239, 571, 629, 717, 1713, 1887, 4063, 8843, 9707, 12189, 21127, 26529, 29121, 63381, 136469, 150331, 359159, 409407, 450993, 1077477, 2319973, 5049353, 6959919, 15148059, 85839001, 257517003]

約数ペア:

[(1, 257517003), (3, 85839001), (17, 15148059), (37, 6959919), (51, 5049353), (111, 2319973), (239, 1077477), (571, 450993), (629, 409407), (717, 359159), (1713, 150331), (1887, 136469), (4063, 63381), (8843, 29121), (9707, 26529), (12189, 21127)]