20321715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79693}}^1$

素因数の和:79718

約数の個数: 16

約数和(自身を含む): 34427808

約数和(自身を除く): 14106093

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 79693, 239079, 398465, 1195395, 1354781, 4064343, 6773905, 20321715]

約数ペア:

[(1, 20321715), (3, 6773905), (5, 4064343), (15, 1354781), (17, 1195395), (51, 398465), (85, 239079), (255, 79693)]