28553319

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{433}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 43872192

約数和(自身を除く): 15318873

約数列:

[1, 3, 9, 17, 51, 153, 431, 433, 1293, 1299, 3879, 3897, 7327, 7361, 21981, 22083, 65943, 66249, 186623, 559869, 1679607, 3172591, 9517773, 28553319]

約数ペア:

[(1, 28553319), (3, 9517773), (9, 3172591), (17, 1679607), (51, 559869), (153, 186623), (431, 66249), (433, 65943), (1293, 22083), (1299, 21981), (3879, 7361), (3897, 7327)]