257291277

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{4243}}^1$

素因数の和:4333

約数の個数: 32

約数和(自身を含む): 385015680

約数和(自身を除く): 127724403

約数列:

[1, 3, 17, 29, 41, 51, 87, 123, 493, 697, 1189, 1479, 2091, 3567, 4243, 12729, 20213, 60639, 72131, 123047, 173963, 216393, 369141, 521889, 2091799, 2957371, 5044927, 6275397, 8872113, 15134781, 85763759, 257291277]

約数ペア:

[(1, 257291277), (3, 85763759), (17, 15134781), (29, 8872113), (41, 6275397), (51, 5044927), (87, 2957371), (123, 2091799), (493, 521889), (697, 369141), (1189, 216393), (1479, 173963), (2091, 123047), (3567, 72131), (4243, 60639), (12729, 20213)]