18859071

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 32503680

約数和(自身を除く): 13644609

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 107, 109, 147, 231, 321, 327, 539, 749, 763, 1177, 1199, 1617, 2247, 2289, 3531, 3597, 5243, 5341, 8239, 8393, 11663, 15729, 16023, 24717, 25179, 34989, 57673, 58751, 81641, 128293, 173019, 176253, 244923, 384879, 571487, 898051, 1714461, 2694153, 6286357, 18859071]

約数ペア:

[(1, 18859071), (3, 6286357), (7, 2694153), (11, 1714461), (21, 898051), (33, 571487), (49, 384879), (77, 244923), (107, 176253), (109, 173019), (147, 128293), (231, 81641), (321, 58751), (327, 57673), (539, 34989), (749, 25179), (763, 24717), (1177, 16023), (1199, 15729), (1617, 11663), (2247, 8393), (2289, 8239), (3531, 5341), (3597, 5243)]