20914855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4073}}^1$

素因数の和:4170

約数の個数: 16

約数和(自身を含む): 27377280

約数和(自身を除く): 6462425

約数列:

[1, 5, 13, 65, 79, 395, 1027, 4073, 5135, 20365, 52949, 264745, 321767, 1608835, 4182971, 20914855]

約数ペア:

[(1, 20914855), (5, 4182971), (13, 1608835), (65, 321767), (79, 264745), (395, 52949), (1027, 20365), (4073, 5135)]