81998511

素因数分解:

$3^1\times 7^2\times {\mathrm{733}}^1\times {\mathrm{761}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 127522224

約数和(自身を除く): 45523713

約数列:

[1, 3, 7, 21, 49, 147, 733, 761, 2199, 2283, 5131, 5327, 15393, 15981, 35917, 37289, 107751, 111867, 557813, 1673439, 3904691, 11714073, 27332837, 81998511]

約数ペア:

[(1, 81998511), (3, 27332837), (7, 11714073), (21, 3904691), (49, 1673439), (147, 557813), (733, 111867), (761, 107751), (2199, 37289), (2283, 35917), (5131, 15981), (5327, 15393)]