81113879

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 105587712

約数和(自身を除く): 24473833

約数列:

[1, 7, 11, 37, 71, 77, 259, 401, 407, 497, 781, 2627, 2807, 2849, 4411, 5467, 14837, 18389, 28471, 28897, 30877, 103859, 163207, 199297, 202279, 313181, 1053427, 1142449, 2192267, 7373989, 11587697, 81113879]

約数ペア:

[(1, 81113879), (7, 11587697), (11, 7373989), (37, 2192267), (71, 1142449), (77, 1053427), (259, 313181), (401, 202279), (407, 199297), (497, 163207), (781, 103859), (2627, 30877), (2807, 28897), (2849, 28471), (4411, 18389), (5467, 14837)]