21772155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85381}}^1$

素因数の和:85406

約数の個数: 16

約数和(自身を含む): 36885024

約数和(自身を除く): 15112869

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85381, 256143, 426905, 1280715, 1451477, 4354431, 7257385, 21772155]

約数ペア:

[(1, 21772155), (3, 7257385), (5, 4354431), (15, 1451477), (17, 1280715), (51, 426905), (85, 256143), (255, 85381)]