20872383

素因数分解:

$3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{1327}}^1$

素因数の和:1451

約数の個数: 24

約数和(自身を含む): 32700672

約数和(自身を除く): 11828289

約数列:

[1, 3, 7, 21, 49, 107, 147, 321, 749, 1327, 2247, 3981, 5243, 9289, 15729, 27867, 65023, 141989, 195069, 425967, 993923, 2981769, 6957461, 20872383]

約数ペア:

[(1, 20872383), (3, 6957461), (7, 2981769), (21, 993923), (49, 425967), (107, 195069), (147, 141989), (321, 65023), (749, 27867), (1327, 15729), (2247, 9289), (3981, 5243)]