20553071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{911}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 5187217

約数列:

[1, 7, 11, 77, 293, 911, 2051, 3223, 6377, 10021, 22561, 70147, 266923, 1868461, 2936153, 20553071]

約数ペア:

[(1, 20553071), (7, 2936153), (11, 1868461), (77, 266923), (293, 70147), (911, 22561), (2051, 10021), (3223, 6377)]