251117217

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{503}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 416078208

約数和(自身を除く): 164960991

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 251, 503, 663, 753, 1509, 1989, 2259, 3263, 4267, 4527, 6539, 8551, 9789, 12801, 19617, 25653, 29367, 38403, 55471, 58851, 76959, 111163, 126253, 166413, 333489, 378759, 499239, 1000467, 1136277, 1641289, 2146301, 4923867, 6438903, 14771601, 19316709, 27901913, 83705739, 251117217]

約数ペア:

[(1, 251117217), (3, 83705739), (9, 27901913), (13, 19316709), (17, 14771601), (39, 6438903), (51, 4923867), (117, 2146301), (153, 1641289), (221, 1136277), (251, 1000467), (503, 499239), (663, 378759), (753, 333489), (1509, 166413), (1989, 126253), (2259, 111163), (3263, 76959), (4267, 58851), (4527, 55471), (6539, 38403), (8551, 29367), (9789, 25653), (12801, 19617)]