20938071

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90641}}^1$

素因数の和:90662

約数の個数: 16

約数和(自身を含む): 34806528

約数和(自身を除く): 13868457

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90641, 271923, 634487, 997051, 1903461, 2991153, 6979357, 20938071]

約数ペア:

[(1, 20938071), (3, 6979357), (7, 2991153), (11, 1903461), (21, 997051), (33, 634487), (77, 271923), (231, 90641)]